Life cycle of a butterfly - class-VII
Description: life cycle of a butterfly | |
Number of Questions: 46 | |
Created by: Trisha Prashad | |
Tags: animals in daily life biology butterfly and honey bee animal lore reproduction in animals |
Metamorphosis is not observed in life cycle of?
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Butterfly
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Ascidia
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Culex
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Hrudinaria
Which of the following hormones controls metamorphosis in a frog?
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Adrenaline
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Insulin
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Oxytocin
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Thyroxine
Metamorphosis includes the developmental changes during the life span of an organism. The thyroxine hormone released from the thyroid gland brings the developmental changes during the metamorphosis. Thyroxine regulates the metabolism of an organism.
(a) Zygote divides a number of times and forms a hollow ball-like structure called (i).
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(i) - Fetus, (iv) - Thymus
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(ii) - Embryo, (iv) - Pituitary
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(iii) - Adolescence , (v) - Calcium
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(ii) - Fetus , (iii) - Senescence
- The four introductory phases of embryonic advancement are the morula organize,
- the blastula arranges, the gastrula arranges and the neurula organizes.
- The front pituitary organ delivers the accompanying hormones and discharges them into the circulation system: adrenocorticotropic hormone, which animates the adrenal organs to emit steroid hormones.
Match the following (w.r.t type of metamorphsis involved).
Column I | Colimn II | |
---|---|---|
a | Paurometabolous | Silk worm |
b | Hemimetabolous | Grasshopper |
c | Holometabolous | Silver fish |
d | Ametabolous | Dragon fly |
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a(ii), b(iv), c(i), d(iii)
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a(i) , b(iii) , c(iv) , d(ii)
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a(ii), b(iii) , c(i) , d(iv)
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a(ii) , b(iv) , c(iii) , d(i)
a) Paurometabolous metamorphosis is characterized by gradual development from the immature stage i.e nymph to the adult stage. Eg- grasshopper.
Cells become variable in morphology and function in different regions of the embryo , the process is:
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Metamorphosis
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Diffrentiation
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Organisation
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Rearrangement
A tadpole develops into an adult frog by the process of
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Fertilization
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Metamorphosis
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Embedding
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Budding
Caterpillar and maggots are
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Larvae
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Nymphs
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Adults
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Pupa
A larva is a distinct juvenile form many animals undergo before metamorphosis into adults. Caterpillar is the common name for the larvae of members of the order Lepidoptera (the insect order comprising butterflies and moths). A maggot is the larva of a fly (order Diptera).
Structure which remains unchanged, during metamorphosis of frog's tadpole is
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Lung
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Heart
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Brain
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Intestine
The nervous system undergoes least changes during metamorphosis of frog's tadpole. Frog's nervous system once differentiated remains as such throughout life. However, the brain acquires its normal shape and size.
Complete metamorphosis occurs in
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Bug
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Grasshopper
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Silverfish
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Butterfly
In each stage of complete metamorphosis, the animal looks different than at all other stages. This is different from incomplete metamorphosis where the early stages of development look like tiny versions of the adult. Butterflies are an example of an insect that goes through all the stages of complete metamorphosis.
Which one of the following is a matching pair of an animal and a certain phenomenon it exhibits?
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Pheretima-Sexual dimorphism
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Musca-Complete metamorphosis
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Chameleon-Mimicry
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Taenia-Polymorphism.
If the sperm and egg cells of a butterfly have six chromosomes, how many chromosomes will be there in the maggot larvae?
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$6$
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$18$
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$12$
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$3$
If the sperm and egg cells of a butterfly have six chromosomes, 12 chromosomes will be there in the maggot larvae. This is because maggot larvae forms due to the fusion of egg and sperm cells. Since egg contains 6 and sperm cells contains 6 chromosomes, maggot larvae will get both sperm cell and egg cell chromosomes. Thus, the correct answer is option C.
Natural parthenogenesis is found in.
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Housefly
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Honeybee
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Drosophila
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All of these
- Parthenogenesis is a form of asexual reproduction in which organisms reproduce without fertilization. It is seen to occur naturally in bees.
- Drone bees are produced parthenogenetically. Female worker honey bees lay only unfertilized eggs and these eggs result in drone bees.
- So, the correct option is 'Honeybee'.
Tadpoles of frog can be made to grow as giant sized tadpoles, if they are
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Administered anti-thyroid substance like thiourea.
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Administered large amounts of thyroxine.
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Reared on a diet rich in egg yolk.
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Reared on a diet rich in both egg yolk and glucose.
Xenopus laevis tadpoles that arrest development and remain as larvae for several years sometimes occur spontaneously in laboratory populations. These tadpoles cease development at an early hindlimb stage, but continue to grow and develop into grossly deformed giants. Giant tadpoles lack thyroid glands, and differ in morphology and behaviour from normal larvae. Tadpoles of frog can be made to grow as giant sized tadpoles, if they are administered large amounts of thryoxine.
Butterflies have the typical ______ stage insect life cycle.
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One
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Two
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Three
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Four
- Typically, insects including butterflies have 4 stages in their life cycle.
- The first stage is egg. when the eggs hatch the new insect is called a larva (second stage).
- The third stage i.e. pupa represents the transition between larva and adult ( fourth stage).
In which stage of complete metamorphosis, does a creature eat a lot in order to store food?
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Egg
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Larva
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Adult
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Both B and C
The larva is that stage in metamorphosis following which the adult stage is reached. The larvae consume a lot of food in order to fuel their transition into the adult form. Hence, during the larva stage the creature eats a lot of food which acts as the source of nutrition and energy, required for its transformation into an adult.
Metamorphosis is affected by
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Iodine
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Thyroxine
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Mineralocorticoids
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Both A and B
- Amphibian metamorphosis depends upon the amount of iodine secured by larvae; the greater the quantity the more rapid the differentiation.
- Also, thyroxine initiates the numerous morphological and biochemical components of amphibian metabolism.
Which gland plays a key role in metamorphosis of a frog?
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Adrenal
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Thyroid
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Thymus
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Pancreas
In amphibians, the metamorphosis of tadpoles occurs after a variable period of from one or two weeks upto several years, depending upon species. The process involves numerous physiological and morphological changes. Thyroxine hormone produced by thyroid gland plays a very important role in the metamorphosis of frog.
How many life-cycle stages does an incomplete metamorphosis have?
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1/2
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3
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3$^{1/2}$
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2
- Complete metamorphosis consists of four stages i.e. egg, larva, pupa and adult.
- Incomplete metamorphosis consists of three stages i.e. egg, nymph and adult.
- Examples of organisms having incomplete metamorphosis in their life cycle are termites, praying mantis and cockroaches.
The changes from larvae to adult is called ______
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Metabolism
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Metamorphosis
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Metastasis
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Morphology
Metabolism is the sum of the physical and chemical processes in an organism by which its material substance is produced, maintained,
and destroyed, and by which energy is made available.
Metamorphosis is a profound change in form from one stage to the next in the
life history of an organism, as from the caterpillar to the pupa and from the pupa to the adult butterfly.
Metastasis the transference of disease-producing organisms to other parts of the body by way of the blood or lymphatic vessels or membranous surfaces Morphology is the branch of biology dealing with the form and structure of organisms
Butterfly and cockroach develops by which metamorphosis?
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Complete and Incomplete
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Complete and Complete
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Incomplete and Complete
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Incomplete and Incomplete
- Complete metamorphosis consists of four stages i.e. egg, larva, pupa and adult.
- Incomplete metamorphosis consists of three stages i.e. egg, nymph and adult.
- Complete metamorphosis occurs in wasps, ants and butterflies while incomplete metamorphosis occurs in termites, praying mantis and cockroaches.
Which of the following processes refers to the casting away of the skin by a caterpillar to allow a larger caterpillar to emerge?
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Metamorphosis
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Chrysalis
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Moulting
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Development
Moulting is the process of casting off the dead rigid outer covering or the exoskeleton or skin of the animal body during its growth. The young larvae casts off its skin in order to allow the growth of the larvae to from the adult. This process is also known as ecdysis.
The extra-embryonic membranes of the mammalian embryo are derived from
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Formative cells
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Follicle cells
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Inner cell mass
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Trophoblast
Extraembryonic membranes are formed outside the embryo from the trophoblast only in amniotes (reptiles, birds and mammals) and perform specific functions.
Periblastula is found in
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Man
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Insects
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Sycon
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Reptiles
Periblastula is the blastula of a centrolecithal egg, which is formed by superficial segmentation. This kind blastula occurs in insects.
Centrolecithal eggs develop to superficial blastula, which consists of a single layer of epithelial cells surrounding the centrally placed yolk and there is no blastocoele.
Thus, the correct answer is option (B).
Changes that convert larva into adult constitute
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Metastasis
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Metagenesis
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Alternation
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Metamorphosis
- Metamorphosis refers to the way that organisms develop, grow, and change form.
- Metamorphosis majorly occurs in insects.
- metamorphosis has four stages i.e egg, larva, pupa and adult. The female lays eggs then the larva hatch from the eggs. Then the larva makes cocoons around themselves this stage is called a pupa. Inside the cocoon, the larvae change into the adult.
- Hence Changes that convert larva into adult constitute metamorphosis
After the rain, tadpoles were found swimming in a pond but not the frogs. This is due to
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Lack of pituitary hormones
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Lack of sex hormones
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Lack of thyroxine
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Lack of nitrogen in water
Tadpole is one of the developmental stages in the life cycle of frogs. The larvae are free-swimming forms which are found in the water. The larvae get metamorphosed to form the adult frog. The thyroid hormones are required for the control and regulation of the events which take place during metamorphosis.
Tadpoles of Frog can be made to grow as giant sized tadpoles, if they are
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Administered large amount of thyroxine
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Administered antithyroid substance like thiourea
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Reared on a diet rich in egg yolk
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Reared on a diet rich in both egg yolk and glucose
Thyroxine, the principal hormone, of thyroid gland, is required for tissue differentiation and metamorphosis (the rapid transformation from the larval to the adult form) in amphibians. So in the presence of antithyroid substance, (that inhibits the synthesis of thyroid hormone) e.g., thiourea, tadpoles remain in the larval stage indefinitely. Thiourea is an organic compound of carbon, nitrogen, sulphur and hydrogen. It is similar to urea, except that oxygen atom is replaced by a sulphur atom.
Axolotl larva shows
i. Neoteny and paedogenesis
ii. Absence of thyroxine affects metamorphosis
iii. It is hemichordate
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i, ii and iii correct
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i and ii correct
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ii and iii correct
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iii correct
The remarkable axolotl or Ambystoma mexicanum is part of the family of 'mole salamanders', but exhibits an unusual and extreme trait known as neoteny, or paedomorphosis. This is the retention of larval stage characteristics throughout life, so axolotls usually never fully resemble an adult salamander. It is a urochordate.
So, the correct option is ‘i and ii correct’.
During regeneration modification of an organ to other organ is known as
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Morphogenesis
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Epimorphosis
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Morphallaxis
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Metamorphosis
- Morphogenesis is the process of the development of shape and structure of an organism when they get mature.
- Epimorphosis is the development of the cells and tissues through the dedifferentiation of adult or pre-existing cells. Here the tissues and organs that are lost are replaced by the existing ones. The new organs are originated according to the shape and size required and are also dependent upon surrounding factors.
- Morphallaxis is the formation of tissues and organ due to loss or transformation of an existing organ.
A gradual decrease in size of tail during metamorphosis of frog is due to
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Cell mecrosis
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Pinocytic activity
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Programmed cell death
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Cell senescence
A. Cell necrosis - is a form of cell injury which results in the premature death of cells in living tissue by autolysis.
B. Pinocytic activity - is a mode of endocytosis in which small particles suspended in extracellular fluid are brought into the cell through an invagination of the cell membrane, resulting in a suspension of the particles within a small vesicle
C. Programmed cell death is the death of a cell in any form, mediated by an intracellular program. PCD is carried out in a biological process, which usually confers advantage during an organism's life-cycle.
D. Cell senescence- is a phenomenon by which normal cells cease to divide
So, the correct option is ‘Programmed cell death’.
Axolotl larva of Ambystoma/tadpole of frog normally fails to metamorphose due to
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Lack of Ca and Mg in water
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Absence of phosphorus in water
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High concentration of iodine in water
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Lack of iodine in water
Gudernatsch discovered that metamorphosis in frog's tadpole begins only when adequate amount of thyroxine is secreted by the thyroid of the tadpole. It was also found that hyposecretion of thyroxine retards and hypersecretion enhances the rate of metamorphosis. In the hilly tracts of North America from whose soil all iodine has been washed away by rainwater, the tadpoles of Ambystoma probably never metamorphose. Therefore, these tadpoles grow to a large size and attain sexual maturity,i.e., these become paedogenetic larvae. This phenomenon is called paedogenesis. The paedogenetic larvae of Ambystoma are called Axolotl larvae. Addition of thyroxine or iodine in pond water naturally induces and enhances metamorphosis in the tadpoles.
Which of the following phenomena occurs during metamorphosis?
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Tadpole change into adult
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Pupa of silk worm change into adult
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Human child change into adult
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Both A and B
Metamorphosis is the process of transformation from an immature form to an adult form in two or more distinct stages. metamorphosis generally takes place in insects or amphibians and some molluscs, crustaceans, cnidarians, echinoderms and tunicates.
Metamorphosis is seen in frogs which are developed form of the larval stage called the tadpoles. Also, metamorphosis is seen in insects where the adult forms develop from the larva and which also includes the pupal or resting stages as in silkworms.
So, the correct answer is option D.
What is the main food of young tadpoles?
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Other tadpoles
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Algae and other plant material
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mall aquatic invertebrates
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Leftovers thrown by man
A tadpole (also called a pollywog) is the larval stage in the life cycle of an amphibian, particularly that of a frog or toad. They are usually wholly aquatic, though some species have tadpoles that are terrestrial. When first hatched from the egg they have a more or less globular body, a laterally compressed tail and internal or external gills. As they grow they undergo metamorphosis, during which process they grow limbs, develop lungs and reabsorb the tail. Most tadpoles are herbivorous.
Metamorphosis is
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Biological process by which an animal physically develops
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Biological process by which an animal physically develops after birth or hatching, involving a conspicuous and relatively abrupt change in the animal's body
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Biological process by which an animal physically develops after birth
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Biological process by which a conspicuous and relatively abrupt change in the animal's body takes place
Metamorphosis is the sequential developmental stages which are characterized by the process of cell division, differentiation, and maturation. It includes morphological and genetical changes.
Insects that go through three stage of change in their life cycle have an _______
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Complete metamarphosis
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Incomplete metamorphosis
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Both a and b
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None of above
The transformation of larva into an adult through drastic changes is called _______
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Metamarphosis
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Fertilization
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Cloning
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None of above
What is a common feature between amphibians and insects?
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Larval forms and metamorphosis
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Morphology
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Mode of reproduction
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None of these
Both amphibians and insects have larval forms. They also undergo a process called metamorphosis to come out of the larval stage. In addition to that both use DNA, RNA, ATP, the basic metabolic processes are the same. They are multicellular organisms. they have a bilateral symmetry, they are both eukaryotes. They have specializations of cells in regard to sensory, reproductive and metabolic systems.
The stages between larval moults in an insect are called
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Pupae
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Grubs
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Caterpillars
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Instars
Insects shed their exoskeleton in order to grow which is known as moulting. Moulting allows the body of insects to expand under protected conditions. An instar is a developmental stage of insects, between each moult until sexual maturity is reached.
Which of the following hormone regulates the metamorphosis of insects?
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Pheromone
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Thyroxine
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Ecdysone
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All of the above
- Molting hormone or Ecdysone is produced by the prothoracic glands which regulates metamorphosis.
- It's principle function is to stimulate a series of physiological events (collectively known as apolysis) that lead to synthesis of a new exoskeleton.
- During this process, the new exoskeleton forms as a soft, wrinkled layer underneath the hard parts (exocuticle plus epicuticle) of the old exoskeleton.
Find the odd one out
Grasshopper, cockroaches, mosquitoes, lice
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Grasshopper
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Cockroaches
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Mosquitoes
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Lice
Larvae of butterfly is known as
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Maggot
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Tumbler
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Caterpillar
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Coccon
Winged adults lay eggs on the food plant on which their larvae, known as caterpillars, will feed. The caterpillars grow, sometimes very rapidly, and when fully developed pupate in a chrysalis. When metamorphosis is complete, the pupal skin splits, the adult insect climbs out and, after its wings have expanded and dried, it flies off. Some butterflies, especially in the tropics, have several generations in a year, while others have a single generation, and a few in cold locations may take several years to pass through their whole life cycle.
Complete metamorphosis occurs in
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Moth
-
Grasshopper
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Bed Bug
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Silver Fish.
Egg, larva, pupa and _____ are the four stages of complete metamorphosis.
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Individual
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Adult
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Mature
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None of these
Which of the following hormones regulates growth and metamorphosis in insects?
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Brain hormone
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Juvenile hormone
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Prothoracicotrophic hormone
-
Ecdysone
- The process of growth and metamorphosis in insects is controlled by secretions of prothoracic glands and corpora allata which are ecdysone and juvenile hormone respectively.
- Ecdysone stimulates growth and shedding of the old cuticle of the larva and the new cuticle is formed beneath the old cuticle.
- The juvenile hormone keeps the larval cells active and also controls the qualitative changes in the body during metamorphosis.
The term metamorphosis is not used while describing human development. Why?
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It occurs only in insects
-
Insects, fishes, amphibians, molluscs, crustaceans, cnidarians, echinoderms and tunicates undergo metamorphosis
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Humans do not show metamorphosis
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Both B and C
Metamorphosis is a biological process by which there is a profound change in form from one stage to the next in the life history of an organism, as from the caterpillar to pupa and from the pupa to adult. Some insects, fishes, amphibians, molluscs, crustaceans, cnidarians, echinoderms and tunicates undergo metamorphosis. Humans do not undergo metamorphosis.
So, the correct answer is 'Both B and C'
Metamorphosis is studied under
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Neurology
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Embryology
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Cardiology
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Physiology
Neurology is the study of structure and function of neurons.