Tag: metamorphosis in frogs

Questions Related to metamorphosis in frogs

Metamorphosis is not observed in life cycle of?

biology butterfly and honey bee life cycle of a butterfly metamorphosis in frogs the life of a butterfly types of reproduction in animals oviparous and viviparous

  1. Butterfly

  2. Ascidia

  3. Culex

  4. Hrudinaria

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Correct Option: A

Which of the following hormones controls metamorphosis in a frog?

biology butterfly and honey bee life cycle of a butterfly metamorphosis in frogs the life of a butterfly types of reproduction in animals oviparous and viviparous

  1. Adrenaline

  2. Insulin

  3. Oxytocin

  4. Thyroxine

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Correct Option: D
Explanation:

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.

So, the correct answer is option D.

(a) Zygote divides a number of times and forms a hollow ball-like structure called  (i). 

      It moves down and gets implanted in the uterus. It starts developing body parts and at this stage,          it is called (ii).

(b) (iii) is the period in life when a girl or a boy attains sexual maturity.

(c) Production of sex hormones is under the control of _(iv)_ gland.

(d) Metamorphosis in frog requires the presence of _(v)_ in water to produce thyroxine hormone.

Choose the correct option for any of the two blanks.

biology butterfly and honey bee life cycle of a butterfly metamorphosis in frogs the life of a butterfly types of reproduction in animals oviparous and viviparous

  1. (i) - Fetus, (iv) - Thymus

  2. (ii) - Embryo, (iv) - Pituitary

  3. (iii) - Adolescence , (v) - Calcium

  4. (ii) - Fetus , (iii) - Senescence

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Correct Option: B
Explanation:
  • 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.

So, the correct option is '(ii) - Embryo, (iv) - Pituitary'.

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
biology butterfly and honey bee life cycle of a butterfly metamorphosis in frogs the life of a butterfly types of reproduction in animals oviparous and viviparous

  1. a(ii), b(iv), c(i), d(iii)

  2. a(i) , b(iii) , c(iv) , d(ii)

  3. a(ii), b(iii) , c(i) , d(iv)

  4. a(ii) , b(iv) , c(iii) , d(i)

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Correct Option: A
Explanation:

a) Paurometabolous metamorphosis is characterized by gradual development from the immature stage i.e nymph to the adult stage. Eg- grasshopper.

b) Hemimetabolous metamorphosis is known as incomplete metamorphosis as consists of three stages of development- egg, nymph and adult stage and does not have the pupal stage. Eg- the dragonfly.
c) Holometabolous metamorphosis is called complete metamorphosis as it consists of all the four stages of development- egg, nymph, pupa and adult stages. Eg- silkworm.
d) Ametabolous development refers to the developmental process in which the immature stages are very similar to the adults and no metamorphosis occurs. Eg- silverfish.
So, the correct answer is 'a(ii), b(iv), c(i), d(iii)'.

Cells become variable in morphology and function in different regions of the embryo , the process is:

biology butterfly and honey bee life cycle of a butterfly metamorphosis in frogs the life of a butterfly types of reproduction in animals oviparous and viviparous

  1. Metamorphosis

  2. Diffrentiation

  3. Organisation

  4. Rearrangement

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Correct Option: A

A tadpole develops into an adult frog by the process of

biology butterfly and honey bee life cycle of a butterfly metamorphosis in frogs the life of a butterfly types of reproduction in animals oviparous and viviparous

  1. Fertilization

  2. Metamorphosis

  3. Embedding

  4. Budding

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Correct Option: B
Explanation:
A. Fertilisation is the fusion of male and female gametes and results in the formation of zygote.
B. Metamorphosis is the process by which an organism undergoes various physical changes and transforms from immature adult or larval form into a mature adult.
C. Embedding means to get stuck on something.
D. Budding is a type of asexual reproduction in which the parent cell produces one or more bud like protuberances which detach from parent cell and grow into a new individual.
Hence, a tadpole develops into an adult frog by the process of metamorphosis as it is transforming from an immature adult into an adult frog. So, the correct answer is 'Metamorphosis'.

Caterpillar and maggots are

biology butterfly and honey bee life cycle of a butterfly metamorphosis in frogs the life of a butterfly types of reproduction in animals oviparous and viviparous

  1. Larvae

  2. Nymphs

  3. Adults

  4. Pupa

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Correct Option: A
Explanation:

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). 

So, the correct answer is option A.

Structure which remains unchanged, during metamorphosis of frog's tadpole is

biology butterfly and honey bee life cycle of a butterfly metamorphosis in frogs the life of a butterfly types of reproduction in animals oviparous and viviparous

  1. Lung

  2. Heart

  3. Brain

  4. Intestine

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Correct Option: C
Explanation:

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. 

Therefore, the correct answer is option C.

Complete metamorphosis occurs in

biology butterfly and honey bee life cycle of a butterfly metamorphosis in frogs the life of a butterfly types of reproduction in animals oviparous and viviparous

  1. Bug

  2. Grasshopper

  3. Silverfish

  4. Butterfly

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Correct Option: D
Explanation:

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.

So, the correct answer is option D.

Which one of the following is a matching pair of an animal and a certain phenomenon it exhibits?

biology butterfly and honey bee life cycle of a butterfly metamorphosis in frogs the life of a butterfly types of reproduction in animals oviparous and viviparous

  1. Pheretima-Sexual dimorphism

  2. Musca-Complete metamorphosis

  3. Chameleon-Mimicry

  4. Taenia-Polymorphism.

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Correct Option: B
Explanation:
Pheretima does not exhibit sexual dimorphism as there is no phenotypic difference between males and females of the same species.
The Musca or the housefly shows complete metamorphosis. It is the phenomenon in which the organism passes through all the four stages of the life cycle. The four distinct stages are as the egg,  larval or maggot, pupal and adult stages. The adult lays the fertilized eggs and the egg hatches to form the larvae. The larvae develop into a pupa and then the pupa is transformed to adult. 
Chameleon exhibits the change of their skin colouration and pattern through a combination of various colours.
Taenia does not exhibit polymorphism.
So, the correct answer is option B.