Explain how an algal bloom affects the oxygen levels in a lake ecosystem.

Biology

1 answer:

NeX [460]3 years ago

8 0

Answer:

Algal bloom causes by eutrophication (when excess nutrients run into a body of water). Eutrophication provides nutrients for algal bloom. As a result, there is an increasing in algal bloom population. Increasing in algal bloom population can block the light that is needed by other organisms. This could impact these organisms survival. Furthermore, when these algae die, their body sink into the bottom of the sea, which consider as nutrients for bacteria, increasing bacteria population. This means that the respiration rate by bacteria is increasing as well. When bacteria respire, they need to absorb oxygen. Over time, these oxygen level will eventually decrease and later form a dead zone.

Explanation:

Hope this helps!

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Their Cell walls

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Which of the following statements is a correct explanation for the observation that all offspring exhibit a phenotype for a part

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D) Neither of the parental genes is dominate over the other.

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<em>Since the trait on the offspring is a mixture from both parent, it means that neither of the alleles from both parents is completely dominant over the other. Instead, each of the alleles contributes equally to the trait of the offspring.</em>

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