Chitin is a major component of the _____

A) skeleton of mammals
B) hydrostatic skeletons of earthworms
C) exoskeleton of insects
D) body hairs of mammals
E) skeleton in birds


Answer: C

Biology & Microbiology

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An important adaptation related to reproduction and first seen in reptiles is _____.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

What has been a consequence of the disease caused by the chytrid Batrachochytrium dendrobatidis?

a. the extinction of many species of frogs b. the killing of trees in temperate forests c. sexual transmission in humans d. the killing of millions of humans each year

Biology & Microbiology

Plasma cells are derived from

A) macrophages. B) B cells. C) T cells. D) dendritic cells. E) neutrophils.

Biology & Microbiology

The organelle known as the ________ makes phospholipids

Fill in the blank(s) with correct word

Biology & Microbiology