Biodiversity Exam 4

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One characteristic of all animals is that they

Are heterotrophs

Which is not a characteristic of all chordates

Brain

You are walking along the beach and come across the almost complete body of an animal. it appears to be mature, has a skeleton of cartilage, paired fins, and tooth like scales covering the body. you classify this animal as a

Chondrichthyan

From an evolutionary perspective, true nerve cells are first seen in the phylum

Cnidaria

The main structural proteins in the extracellular matrix of animals are

Collagen

Which was the primary challenge animals faced to adapting to life on land

Desiccation

Which of the following is not an example of Plathelmintes?

Earthworm

Which of the following animals help maintain fertile soil

Earthworms

From the clade Deuterostomia, which has a water vascular system

Echinoderms

The germ layer endoderm forms the

Lining of the digestive track

Which arthropods are you most likely to have a living in your bed

Mites

The veliger larval form is unique to

Molluscs

The locust belong in the clade Ecdysozoa because its lifecycle involves

Molting

The monotremes are an unusual group of mammals because they

lay eggs

Which is not associated with cephalopods

Filter feeders

A student brings you an animal to identify. It has a head, thorax, and abdomen, one pair of antennae, 3 pairs of legs and wings, to which subphylum would it belong?

Hexapoda

Where does digestion in a sponge take place

Individual cells

And important adaptation to a terrestrial life is a body covering that minimize water loss what protein is found in animal skin cells that helps prevent water loss and provides physical protection

Keratin

Which is not a feature of the Porifera

Nerve tissue

The amniotic egg was an extremely important evolutionary step as it allowed terrestrial vertebrates to complete their life cycle on land. The amniotic egg contains several extra embryonic membranes. what is the function of the chorion?

Plays a major role in gas exchange

Which animal phylum has an asymmetrical body plan

Porifera

The main benefit of a coelom is

Providing a space for internal organs

Which of the following is characteristic to most deuterosomes

Radial cleavage

Which structure do numerous mollusk use to feed, for example, to scrape off algae off rocks?

Radula

The amphibians are believed to have arisen from ancestral

Sarcopterygian

What specialized structure do crustaceans use to sense gravity

Statocysts

In the evolution of vertebrates, it has been hypothesized that they might have come from a tunicate ancestor and that the tunicate larvae maybe "the cordate body plan" by a process of neotany. What does neoteny mean?

The retention of juvenile features in the adult animal.

Which is a characteristic of all anellids

They are segmented

Which is a unique adaptation and insects not found in any other arthropod

Wings

The amniotic egg first evolved in

reptiles


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