Chap 32 Part 1

Front 1

Both animals and fungi are heterotrophic. What distinguishes animal heterotrophy from fungal heterotrophy is that only animals derive their nutrition by

Back 1

ingesting it.

Front 2

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?

Back 2

changes in the homeobox genes governing early development

Front 3

Which of the following is (are) unique to animals?

Back 3

nervous conduction and muscular movement

Front 4

What do animals as diverse as corals and monkeys have in common?

Back 4

presence of Hox genes

Front 5

The Hox genes came to regulate each of the following in what sequence, from earliest to most recent? 1. identity and position of paired appendages in protostome embryos 2. anterior-posterior orientation of segments in protostome embryos 3. positioning of tentacles in cnidarians 4. anterior-posterior orientation in vertebrate embryos

Back 5

3 → 2 → 1 → 4

Front 6

In individual insects of some species, whole chromosomes that carry larval genes are eliminated from the genomes of somatic cells at the time of metamorphosis. A consequence of this occurrence is that

Back 6

we could not clone a larva from the somatic cells of such an adult insect.

Front 7

The last common ancestor of all animals was probably a

Back 7

flagellated protist

Front 8

Evidence of which structure or characteristic would be most surprising to find among fossils of the Ediacaran fauna?

Back 8

Hard parts