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saranyaallu saranyaallu
wrote...
Posts: 36
Rep: 1 0
4 years ago
a The lateral line of a shark is used for

1 Heat sensing for locating prey

2 Odor detection

3 Excretion

4 detecting and locating objects and moving animals in the water

b The group of fish that have skeletal elements in the fins in addition to dermal rays

1 Sarcopterygii

2 Actinopterygii

3 Petromyzontida

4 Elasmobranchii

c Which of the following is NOT a characteristic of all chordates at some point in thier life cycle?

A.   A bony or cartilaginous exoskeleton

B.A dorsal, tubular nerve cord

C. A notochord

D.   Pharyngeal gill arches/slits

D Which of the following includes tunicates and sea squirts

1 Myxini

2 Cephalochordata

3 Urochordata

4 Hemichordata

E Which of the following has the pronephritic kidney through adulthood?

1 Actinopterygii

2 Chondrichthyes

3 Sarcoptyergii

4 Myxini

F  The Gnathostomata...

1  are vertebrates with jaws.

2  are vertebrates without jaws.

3 are completely extinct.

4 includes the protochordates.

G   Osmoregulation in sharks is accomplished via...

1  salt absorbing cells in the gills.

2  simple diffusion.

3 the rectal gland.

4 malpighian tubules.

H  Echinoderms are more closely related to vertebrates than they are to other invertebrates such as arthropods and annelids because...

1  they have similar larval stages.

2  they are triploblastic.

3  they are deuterostomes.

4  they have a complete digestive tract.
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bio_manbio_man
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4 years ago
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wrote...
Educator
4 years ago
All Done. I've marked my post as solved.

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