Answer:
B. New predators move into the ecosystem.
Explanation:
A, C, and D are all abiotic (nonliving) factors that could limit a community in an ecosystem.
Answer:
The rate of gaseous exchange in alveoli and blood depends on the difference in pressure of gases in both the alveoli and blood capillaries.
Explanation:
The air in alveoli has high pressure of oxygen and low pressure of carbon-dioxide.
The air in blood vessels has high pressure of carbon-dioxide and low pressure of oxygen
Due to the diffusion, the oxygen from alveoli moves towards to blood capillaries and carbon-dioxide diffuses from blood to alveoli.
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Answer:
A to meet needs through collective effort
Explanation:
Picture as proof
Answer:
<h2>False</h2>
Explanation:
Such type of condition when the supply of the blood to the brain is stoped is known as a stroke and causes many problems such as speech difficulty, arm weakness and some other. There are many factors that are responsible for this problem such as high blood pressure, diabetes, old age and some other. The occipital lobe is a center that plays an important role in visual processing and is found in the location of the visual cortex.
Answer:
Nitrogen-fixing bacteria are prokaryotic microorganisms that are capable of transforming nitrogen gas from the atmosphere into “fixed nitrogen” compounds, such as ammonia, that are usable by plants.
Explanation:
