The larvae of some insects are merely small versions of the adult, whereas the larvae of other insects look completely different from adults, eat different foods, and may live in different habitats. Which of the following most directly favors the evolution of the latter, more radical, kind of metamorphosis?
A) natural selection of sexually immature forms of insects
B) changes in the homeobox genes governing early development
C) the evolution of meiosis
D) the development of an oxidizing atmosphere on Earth
a pocket mouse, Perognathus sp., a small granivor
Reindeer standing on snow to avoid blood-sucking insects.
Unidentified Hemidactylus adult from Dindigul (Tamil Nadu, India)
Small Town USA: Struggling to Survive
Location of the apical pulse in a child under age 4, a child ages 4 to 6, and an adult
Structure of the small intestine.