Biology Test
| Description: BIOLOGY | |
| Number of Questions: 25 | |
| Created by: Rekha Rai | |
| Tags: Medical Entrance B.Sc. Class XI Class XII Fruit Gymnosperms Species Interdependence Population Interactions Chromosomal Theory of Inheritance Hierarchy of Categories Taxonomical Hierarchy |
In Cycas, the first formed cambial ring is short lived and new cambial ring is formed every year in the pericycle or cortex. Wood formed by this method is
Xylem in gymnosperms usually lacks
Intraspecific competition is competition among
Puffs in the salivary gland chromosomes are the sites of
Which taxonomic term may be substituted for any rank in the classification?
The movement of water and minerals in a plant involves passage
Nostoc is characterized in having
Conjoint, collateral, endarch and open vascular bundles are found in
Ecotone is characterized by
Carbamates, used as herbicides, are
The main difference between active and passive transport across cell membrane is that
Hexose monophosphate shunt is also called
The absorption spectrum of chlorophyll
A cytokinin-like substance isolated and crystallized from milky endosperm of corn (Zea mays) is termed as
Match Column A (Types of fruits) with Column B (Different examples) and select the correct answer from the options given below. Column A Column B (a) Etaerio of berries 1. Maize (b) Caryopsis 2. Pineapple (c) Sorosis 3. Walnut (d) Drupe 4. Custard apple
The prevention of a healthy plant from coming in contact with the pathogen is called
Raphids are needle-like crystals of calcium oxalate, which are especially common in
Ergotism is caused by
Materials of biological origin, which are commonly used to maintain and improve soil fertility are called
Movements which occur without any external stimuli are termed as
In which order of gymnosperms, only fossils are present?
A plant that reproduces by spores has vascular tissue, but lacks flower, should belong to
A plant that twines around the support and is hard and woody is called
Which type of fruit the Betal nut is?
Competition for food, space and light is probably most severe between two