Homework answers / question archive / Question 1 1 / 1 pts Which whales use echolocation to search for prey?    Baleen whales     Gray whales     Toothed whales     Right whales     Question 2 1 / 1 pts More than 90% of living and fossil animals are generally soft bodied, lack a rigid internal skeleton, but may posses some sort of hard protective covering (shell)

Question 1 1 / 1 pts Which whales use echolocation to search for prey?    Baleen whales     Gray whales     Toothed whales     Right whales     Question 2 1 / 1 pts More than 90% of living and fossil animals are generally soft bodied, lack a rigid internal skeleton, but may posses some sort of hard protective covering (shell)

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Question 1

1 / 1 pts

Which whales use echolocation to search for prey?

  

Baleen whales

   

Gray whales

   

Toothed whales

   

Right whales

 

 

Question 2

1 / 1 pts

More than 90% of living and fossil animals are generally soft bodied, lack a rigid internal skeleton, but may posses some sort of hard protective covering (shell).  

  

True

   

False

 

 

Question 3

1 / 1 pts

Which group of marine animals generate their own body heat, create their own metabolic water, and evolved from ancestors that walked on land?

  

reptiles

   

bony fishes

   

cartilaginous fishes

   

marine mammals

 

 

Question 4

1 / 1 pts

Which group of vertebrates is most successful in terms of numbers of species?

  

Birds

   

Reptiles

   

Fishes

   

Mammals

 

 

Question 5

1 / 1 pts

What event made aerobic respiration practical, and allowed animals to prosper?

  

anerobic fermentation

   

break up of Pangaea

   

oxygen revolution

   

ozone accumulation

 

 

Question 6

1 / 1 pts

Why do some fish swim in schools?

  

Increase water flow over gill membranes

   

To raise their body temperature

   

Reduce water resistance (drag)

   

To avoid predation

 

 

Question 7

1 / 1 pts

Why do sea turtles come ashore?

  

Females come ashore to lay eggs.

   

They come ashore only when they are sick or disoriented.

   

To escape predators during the non-migratory season.

   

To feed on marine plants.

 

 

Question 8

1 / 1 pts

Which birds have tube-like plumbing in their bills for sensing air speed, and ducting saline water?

  

Albatrosses, Petrals, and Shearwaters

   

Penguins

   

Plovers and Sandpipers

   

Herons and Egrets

   

Gulls

 

 

Question 9

1 / 1 pts

A symbiotic relationship where the symbiont is benefited while the host is neither benefited nor harmed.

  

parasitism

   

facultative mutualism

   

commensalism

   

obligate mutualism

   

simple symbiosis

 

 

Question 10

1 / 1 pts

Which habitat is used by many marine organisms (especially fish) as a nursery to protect and feed juveniles? 

  

Oyster beds and rock/coral reefs

   

Rocky shores (tide pools)

   

Estuaries

   

Sandy beaches

 

 

Question 11

1 / 1 pts

How are hydrothermal vent communities able to get energy?

  

bioluminescent bacteria

   

hydrothermal energy

   

chemosynthetic bacteria

   

photosynthetic plankton

 

 

Question 12

1 / 1 pts

All of the following are challenges of living on a rocky shore EXCEPT

  

rise and fall of the tides

   

wave shock

   

temperature changes

   

low food availability

 

 

Question 13

1 / 1 pts

Which animals are well-adapted for life on a sand beach?

  

Invertebrates that produce bioluminescence

   

Small snails that remain on the surface to graze for food

   

Mussels that can attach firmly to hard surfaces

   

Small fast-burrowing clams and crabs

 

 

Question 14

1 / 1 pts

What causes sub-zones (zonation) to develop within the intertidal zone?

  

Differences in water temperature, salinity, and dissolved oxygen availability. 

   

The varying amounts of human-caused influence on coastal environments. 

   

The varying amounts of wave shock from winter to summer. 

   

The ability of certain animals to withstand varying amounts of emergence and submergence.

 

 

Question 15

1 / 1 pts

Corals have a symbiotic relationship with ____ that live within their tissues. 

  

dinoflagellates known as zooxanthellae.

   

diatoms

   

protozoa

   

multicellular red algae