Aprotective, waterproofing structure consisting of several cuticle layers is the
a. endoskeleton
b. exoskeleton
c. labium
d. ocelli

Why would a drug that damages capsids treat a viral infection? a. capsids prevent the lytic cycle from beginning. b. transduction requires a capsid. c. viruses use capsids to increase genetic variation. d. capsids provide protection for viruses.

Coquina, a type of limestone, forms from shell fragments that settle on the ocean floor. what type of rock is coquina?

Waianapanapa beach in hawaii is a black-sand beach that was formed by waves crashing against volcanic rock. the sand can be very hot on sunny days. which statement best explains why? o a. the black sand has no heat capacity. b. the black sand absorbs no radiation. o c. the black sand is immune to insolation. d. the black sand has a low albedo.