Question 101 Part of Darwin\'s theory of natural selection says that in a given

Question

Question 101

Part of Darwin's theory of natural selection says that in a given population, many more individuals are produced each generation than the environment can support.

True

False

Question 88

Sea otters have been used as an example of the "Keystone Species" concept. This means that sea otters

interactions with the kelp forests and the sea urchins have not really had any consequences that need to be currently studied.

provide the carnivorous component of the food chain in which they live.

offer an opportunity for scientists to study the long-term effects as the sea otter populations are harvested.

promote the edge effect in the kelp forests off the northern coastline of California.

exert a particular strong influence on the structure and functioning of an ecosystem.

Question 39

Why would increasing the amount of sunlight increase carnivore biomass?

It will increase the amount of energy, and therefore the amount of biomass, in the system.

None of these is correct.

There will be a smaller percentage of energy wasted in the system.

More than one of these is correct.

Carnivores would be able to see their prey better.

interactions with the kelp forests and the sea urchins have not really had any consequences that need to be currently studied.

provide the carnivorous component of the food chain in which they live.

offer an opportunity for scientists to study the long-term effects as the sea otter populations are harvested.

promote the edge effect in the kelp forests off the northern coastline of California.

exert a particular strong influence on the structure and functioning of an ecosystem.

Explanation / Answer

Answer

101- Part of Darwin's theory of natural selection says that in a given population, many more individuals are produced each generation than the environment can support is a true statement because this statement is one of three preconditions for natural selection.

88. Sea otters have been used as an example of the "Keystone Species" concept. This means that sea otters exert a particularly strong influence on the structure and functioning of an ecosystem. As sea otter feeds upon sea urchin that helps to grow giant seawood which provide food and shelter to various herbivores in the ecosystem and maintain the entire ecosystem.

39. Why would increasing the amount of sunlight increase carnivore biomass?

Increase the amount of sunlight increases the carnivore biomass because It will increase the amount of energy, and therefore the amount of biomass, in the system.

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