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2 years ago

Select the correct answer.

Biology

1 answer:

sattari [20]2 years ago

5 0

Answer:

Keystone species

Explanation:

Keystone species is that species whose presence and number in the ecosystem plays an important role in balancing the ecosystem and without them, the other species would be affected directly and indirectly.

A dominant predator is considered to be a keystone species because the removal of that predator allow their prey to explode in numbers which will decrease the overall biodiversity of the area. Prairie dogs, otters, bison are the examples of keystone species. So the correct answer is B. Key stone species.

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Evidence that visual input is routed from the thalamus directly to an emotional control center in the brain has been used to sup

Marina86 [1]

This evidence supports the claim that some emotional reactions may occur without conscious thinking.
Thalamus is a small brain area located above the brain stem, with the main function of sending motor and sensory signals from the spinal cord and the mid-brain structures to the cerebral cortex.

Amygdala is a small brain region, which is part of the limbic system. It is considered the emotional control centre of the brain since it regulates emotions, survival instincts and some memory functions.

It has been proven that visual input is directly sent by the thalamus to the amygdala, which can trigger some emotional responses (such as fear) without any conscious processing.

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2 years ago

Which of the following describes a choanocyte?

Firdavs [7]

Answer:

Explanation:

cause I think thts the answer sorry if I'm wrong

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2 years ago

A person has problems in keeping his body in a balanced position and cannot coordinate his

k0ka [10]

Answer:

$\huge\boxed{\sf Cerebellum }$

Explanation:

Cerebellum is a leaf-like structure that is a part of the hind brain and is responsible for:

coordinating skeletal muscle movements.
controls movements, posture and balance.
involved in learning too.

So, if the cerebellum of the brain is affected/injured, a person can have difficulty in keeping their body in a balanced position, coordinate voluntary movements of skeletal muscles and learning.

$\rule[225]{225}{2}$

Hope this helped!

8 0

1 year ago

Which of the following have been linked to the dramatic global decline of amphibian populations? Select one: a. drainage of wetl

charle [14.2K]

<h2>The correct answer is: e.</h2>

Explanation:

Decline in the global population of amphibians is due to multiple reasons which include:

A moist ecosystem is necessary for amphibians especially for the purpose of their reproduction. The drainage of the wetlands deprives them of their habitat.
Pollutants adversely affects the survival of the gametes, tadpoles or the adult amphibians by acting as toxic agents and inhibiting their normal metabolic function.
Infectious diseases often cause their death resulting their population to decline.
Global climate warming affects their normal metabolic growth and development and hence causes their population to decline.

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2 years ago

Which is the correct answer?

sp2606 [1]

Decrease the second one

7 0

2 years ago