List of top Zoology Questions

Following are different stages in blood clotting. Arrange them in correct sequence:
[I)] Activation of prothrombin
[II)] Formation of prothrombin activator
[III)] Conversion of fibrinogen into soluble fibrin
[IV)] Clot retraction
[V)] Conversion of soluble fibrin into insoluble fibrin threads

Match the following: \begin{tabular}{|c|l|l|} \hline List-I (Disorder) & & List-II (Character)
\hline A) & Myasthenia gravis & IV) Auto-immune disorder
B) & Muscular dystrophy & III) Progressive muscle degeneration
C) & Gout & I) Urate crystal deposits in joints
D) & Osteoporosis & II) Low bone density, fractures
\hline \end{tabular}

Match the following:

List - I	List - II
A) Morphine	IV) Pain killer
B) Cannabinoids	V) Dopamine
C) Cocaine	I) Cardiovascular system
D) Benzodiazepines	II) Tranquilizers

Study the following and pick up the correct statements:
[I)] \Daphnia exhibits cyclomorphosis
[II)] In a thermally stratified lake of temperate region, the upper layer in winter is epilimnion
[III)] Niche is the functional role of an organism in an ecosystem
[IV)] Bergmann’s rule states the relationship between temperature and metabolic rate of animals

Study the following statements regarding respiratory system of cockroach and identify the correct option:
Statement-I: Cockroach possesses 10 pairs of spiracles.
Statement-II: The spiracles of cockroach are holopneustic.

Study the following and pick up the incorrect combinations:

S.No.	Group	Flourished in...	Example
I	Pisces	Devonian period	Exocoetus
II	Amphibia	Cretaceous period	Colotes
III	Reptilia	Mesozoic era	Hemidactylus
IV	Mammalia	Palaeozoic era	Felis

Match the following:

Animal	Class
A) Feather star	V) Crinoidea
B) Acorn worm	IV) Enteropneusta
C) Pearl oyster	I) Bivalvia
D) Millipede	III) Diplopoda

Taxonomic hierarchy includes the following obligate categories:
Class, Family, Kingdom, Order, Species, Phylum, Genus
Arrange them in correct sequence.

Statement-I: In articular cartilages, perichondrium is present.
Statement-II: Intervertebral discs contain fibrous cartilage.
Identify the correct option from the following:

Assertion (A): Radial symmetry is an advantage to sessile or slow moving animals.
Reason (R): Radial symmetry allows equal distribution of sense organs and body parts in all directions, facilitating equal response in any direction.
Identify the correct option from the following:

Match the following

Assertion (A) : Genetic drift always increases genetic diversity in small populations.
Reason (R) : Founder effect and Bottleneck effect exemplify the genetic drift.
Identify the correct option from the following