Biology Final Exam Pt. 10

Which of the following statements about animal nervous systems is CORRECT?

All taxonomic groups of animals have nervous systems EXCEPT sponges.

Why is the amniotic egg considered a key evolutionary innovation?

It greatly increases the survival probabilities of eggs in a terrestrial environment.

All animals: are heterotrophic. share a common ancestor. have true tissues. have a backbone. Only a) and b) are correct.

Only a) and b) are correct.

Which animal phylum lacks true tissues?

Porifera (sponges)

In terms of their adaptation to living on land, how are reptiles similar to the seed plants?

Seed plants and reptiles have developed structures such as cuticles and impermeable skin in order to minimize water loss.

Which came first, the chicken or the egg?

The egg, because the amniotic egg evolved well before the first bird.

All arthropods have:

a chitinous exoskeleton and jointed appendages.

Which of the following are chordates? frogs humans fish all of the above are chordates

all of the above are chordates

Lampreys and hagfishes:

are the only living jawless vertebrates

Sharks have ________________ skeletons, while salmon have _______________ skeletons.

cartilaginous; bony

Birds are most closely related to:

crocodiles

Birds are ___________________, while turtles are _________________.

endotherms; ectotherms

The two most important evolutionary innovations in vertebrates, which resulted in their eventual domination of the large animal niches, were:

evolution of jaws and amniotic eggs.

Two important features that distinguish mammals from any other type of animal are:

hair and mammary glands

Most species of animals are:

invertebrates

In what order do the following taxa appear in the fossil record?

invertebrates, fish, land plants, amphibians

Some general evolutionary change trends in animals include:

larger body size, bilateral symmetry, and an enclosed, fluid-filled body cavity.

Reptiles show numerous adaptations for a completely terrestrial life cycle. One adaptation that first occurred in the reptiles includes:

the amniotic egg

All of the following are insects EXCEPT:

ticks

Which of the following is NOT a reptile?

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