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bogdanovich [222]
3 years ago
13

PLEASE HELP!!!! Why is it important that only one sperm cell fertilizes an egg cell?

Biology
1 answer:
Oksanka [162]3 years ago
7 0
<span>because it has a very strong power of sperm in the system to make the baby in the world

</span>
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Which of the following best explains the difference between micro and macro evolution? A. Microevolution is based on ideas, whil
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Answer: C. Microevolution is small scale change to the gene pool of a population while macroevolution is larger scale changes that lead to speciation.

Explanation:

Microevolution can be defined as a small change in the gene frequency within a gene pool of the species, these changes will be inherited by the organisms and there will not be any drastic change at the species level. But in case of macroevolution the large scale change occurs at the genetic level, which retain for long. This leads to development of new organisms or results in speciation.

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The 6-kingdom system of classification divides the former kingdom Monera into two kingdoms, Eubacteria and
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Explanation:

The 6-kingdom system of classification divides the former kingdom Monera into two kingdoms, Eubacteria and

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black coffee has a pH of 5, therefore its H+ concentration is ______ times greater than a solution with a pH of 10.
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Answer:

100,000

Explanation:

pH of coffee = 5

pH of solution = 10

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Hence, the pH difference :

pH of solution - pH of coffee

(10 - 5) = 5

Hence, difference in H+ ions will be :

10^5 = 10*10*10*10*10 = 100,000 times

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2 years ago
In the electron transport system
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Answer:

A. NADH and FADH2 both donate electrons at the same location.

Explanation:

In the respiratory chain, four large protein complexes inserted into the mitochondrial inner membrane transport NADH and FADH₂ electrons (formed in glycolysis and the Krebs cycle) to oxygen gas, reducing them to NAD⁺ and FAD, respectively.

These electrons have great affinity for oxygen gas and, when combined with it, reduce it to water molecules at the end of the reaction.

Oxygen gas effectively participates in cellular respiration at this stage, so its absence would imply interruption of the process.

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The energy released by the NADH and FADH₂ electrons in the respiratory chain in theory yields <u>34</u> <u>ATP</u>, however, under normal conditions an average of 26 ATP molecules is formed.

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3 years ago
When you use electricity in your home, which resources are powering it? Research the energy resources used to power your state’s
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Comment which state you live in an I'll be able to help

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