Identify the terms described by selecting the correct word from the drop-down menu

Biology

1 answer:

Lorico [155]2 years ago

8 0

I need the dropdown menu to answer this question

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The major disadvantage of a blood-brain barrier is that ____.

aalyn [17]

<span>The answer is a certain required chemicals must be actively transported. Blood brain barrier is a selective membrane that separates blood circulating from the brain and the fluid of extracellular in the central nervous system. This is also called a filtering mechanism, the capillaries that carry blood to the brain and spinal cord tissue blocking the path way of the certain substance.</span>

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3 years ago

Matings between individuals from the two populations of Rhagoletis produce hybrid flies that appear to be healthy and have norma

Mama L [17]

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

Explanation:

According to the question, mating between two populations of Rhagoletis produce hybrid flies.
This means that the two population is present in the same habitat or locality, hence they are capable of coming in contact with each other and mate. Hence, the answer cannot be Habitat Isolation.
Mating produces hybrid flies. This is possible when the gametes (egg and sperm) of the two different populations are capable of capable of coming close to each other and undergoing fusion (fertilization). Hence, there is no Mechanical Isolation.
The zygote formed by the above fertilization is capable of developing into healthy hybrid flies with normal life span. Hence, Pre-zygotic Isolation is absent.
But the hybrid flies formed are sterile and not fertile, that is, they are incapable of producing viable gametes which can undergo fertilization and produce a new offspring.Therefore, the eggs laid by the hybrid flies hatch less often. Hence, there is existence of Reduced hybrid fertility.

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3 years ago

Eutrophication can result from excess_____ pollution in bodies of water

xz_007 [3.2K]

Eutrophication can result from excess nutrients pollution in bodies of water

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A special protein in your blood captures and carries oxygen. This protein is called what

Kamila [148]

Hemoglobin is a special protein in the blood that captures and carries oxygen.

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Looking at a food web, where is the largest amount of energy found?

kirill115 [55]

Largest energy found in the lowermost portion of the trophic level near "Producers" 'cause as it passes through the higher trophic levels, it get decreased by 10% at each step, according to Lindmann's 10% law!!

Hope this helps!!

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