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Lelu [443]
3 years ago
5

It is impossible for sperm to be functional (able to fertilize the egg) until after ________. Group of answer choices

Biology
1 answer:
lesya692 [45]3 years ago
8 0

Answer:

The answer is "they undergo capacitation"

Explanation:

Sperm migrate through uterine contractions and the energies of its flagella to the uterine tube. In sperm motility, reverse peristalsis is engaged in the uterus and uterine tubes. For a sperm cell to fertilize an egg, it takes approximately 24 hours. The surface of the egg changes as the sperm penetrates the egg, therefore no sperm is allowed within. The kid is fully genetic, including whether it's a boy or a girl at the time of fertilization. Until they are trained it is difficult for sperm to be working.

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Why is it important to follow strict safety procedures when handling a urine sample
xz_007 [3.2K]

Because you could easily contaminate the results of the urine if you don't follow exactly what the strict rules dictate This could be a very dangerous thing because if you contaminate the results, then other doctors would think that the patient has some disease that needs to be taken care of which in reality they do not. The patient could also have to go through things or waste money on things that they don't need to because there was something in the urine that wasn't supposed to be there which was added because they didn't follow the strict rules. Then the doctor who contaminated it could be sued for malpractice which is never a good thing.

7 0
3 years ago
What is the first step in the creation of a theory?
alexdok [17]

Your answer would be: A. because scientists use what they have to create a theory, a theory is pretty much an educated guess is what a teacher would say, the theory would need to have evidence in order for it to be an educated guess. The scientist would have to come up with an explanation in order for the theory to work, or be an educated guess.

5 0
3 years ago
Read 2 more answers
Let's say that Sam and Joe are identical twins. This means they are like clones of each other. They have the same DNA sequences
galben [10]

Answer: No, only identical twins will look identical.

Explanation:

Identical twins are also called monozygotic twins. Such twins are produced by the fertilization of one egg that splits into two. The genes present in these twins are same thus the expression of traits is also same in them and they have the same sex.

Sam and Joe and Maria and Ella are identical twins these pairs are expected to have same genotypic and phenotypic traits. They may be clones of each other. But if Sam and Maria are married and Joe and Ella are also married then their children will have some similar traits in common but their children will not be identical as they are not identical twins as their parents were.

5 0
3 years ago
“Roots grow down and shoots grow up.” That is the conclusion drawn by a group of plant scientists. To validate their results a p
kompoz [17]
I would think either B or D
8 0
3 years ago
A healthy Caribbean reef is home to over 50 species of coral and over 400 fish species. In this simplified model, we only consid
N76 [4]

Answer:

Without the model, we can't help you. But a healthy coral reef would most likely have some kind of productive ecosystem.

Explanation:

I would assume the the diagram includes a reference to fish, algae or other plant-like life, and the coral itself. The coral polyps are in a symbiotic relationship with algae; the algae provide the polyps with energy via photosynthesis and the polyps build "homes" for the algae and other species living in the reef (the "home" for algae is literally the coral reef).

Other species like animal life use the reef as a place of protection against larger predators. Fish frequent reefs since many types of aquatic predators dislike shallow waters and coral reefs provide plenty of nooks and crannies to hide inside.

8 0
3 years ago
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