List of top Zoology Questions

Pseudopodia in Actinophrys are of this type:

Match the following:

Hormone that maintains the normal rhythms of the sleep-wake cycle.

Match the following:

Match the following:

Consider the following statements about prokaryotic and eukaryotic cells:
Statement I: Some prokaryotes evolved into mitochondria and plastids in the bodies of ancestral eukaryotes.
Statement II: The endomembrane system of eukaryotes might have evolved by infolding of the plasma membrane.
Which of the following is correct?

Assertion (A): Circulatory system of arthropods and molluscs is mainly open type.
Reason (R): Blood pumped out by the heart is circulated through a series of blood vessels in them.

Assertion (A): Continued close breeding usually reduces fertility and even productivity.
Reason (R): Inbreeding depression.

In cockroach, inspiration takes place through:

Match the following:

In cockroach, wings are elevated by the contraction of:

Flagellum in Peranema is:

Match the following:

In an experiment, Malpighian tubules of a cockroach are removed. Which substance might be absent in its fecal pellets?

In some non chordates, during embryonic development, mesoderm occupies only a part of blastocoel adjoining ectoderm. The unoccupied portion of blastocoel persists as.

Identify the correct statements:
I. Veins are bright red in colour and provided with wide lumen
II. Veins are non-valvular and blood flows in veins by jerks.
III. Arteries are provided with thick tunica media.
IV. Veins end in capillaries and arteries start with capillaries.