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Varvara68 [4.7K]
3 years ago
10

______________ are agents (e.g., chemicals, viruses) that can reach the embryo or fetus and cause it harm.

Biology
1 answer:
Marianna [84]3 years ago
3 0

Answer:

These agents are known as teratogens.

Explanation:

Teratogens impair or cause abnormal development and growth of the embryos or fetuses exposed to them. During prenatal development, the embryonic stage is the most susceptible to teratogens because at this time there is formation of major organs and limb buds. Birth defects are a common sign of such exposure.

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What best describes the head end of a phospholipid?
Sidana [21]

Answer:Image result for What best describes the head end of a phospholipid?

A single phospholipid molecule has a phosphate group on one end, called the “head,” and two side-by-side chains of fatty acids that make up the lipid “tails. ” The phosphate group is negatively charged, making the head polar and hydrophilic, or “water loving.”

Explanation:

5 0
3 years ago
When a sperm and egg cell combine, the new cell called a zygote contains:
diamong [38]

Answer:

2, 23 pairs

Explanation:

it is honestly the only one that makes sense

5 0
2 years ago
Based on your understanding of the hydrologic cycle and oceans, pick the correct statement from the choices below.
IceJOKER [234]

Answer:

Neither A nor B is correct

Explanation:

Hydrologic cycle is the sequence of different conditions through which the water passes from oceans to clouds, precipitates as rains, comes to the rivers and finally reaches the ocean.

This first statement in the question said that water will end up in the river which is not true because water from the river ultimately ends in the oceans because all the rivers terminate in the oceans finally.

The second statement is also wrong because when water from one ocean vaporizes and becomes cloud, it can travel large distances as clouds in the effect of wind and thus may get precipitated in the form of rain in some other part of the world. So, it is not necessary that the water will end up in the same ocean.

4 0
3 years ago
Some proteins do indeed need assistance during the folding process. the general term used for the proteins that help other prote
sergey [27]

Some proteins do indeed need assistance during the folding process. the general term used for the proteins that help other proteins fold is Chaperones.

<h3>What are Chaperones?</h3>
  • Chaperones are proteins that help big proteins or macromolecular protein complexes fold or unfold conformationally. There are different groups of molecular chaperones, all of which have the same purpose: to help big proteins fold properly during or after synthesis as well as following partial denaturation.
  • Protein translocation for proteolysis involves chaperones as well. The bulk of molecular chaperones aid in protein folding by binding to and stabilizing folding intermediates up until the polypeptide chain is entirely translated, rather than providing any steric information for protein folding.
  • Based on their target proteins and location, chaperones have different unique modes of operation.

Learn more about the Protein folding with the help of the given link:

brainly.com/question/28421475

#SPJ4

7 0
2 years ago
How can your knowledge about the history of life benefit the current and future fields of science ?
professor190 [17]

Answer:

History of life provide evidence of technological advancement.

Explanation:

The study of history gives us a look into some of the planet's history and also how we came to know what we think about the universe. Such periods of exploration may seem uninteresting now, yet consider not having found them at all. Consider how we'd feel if we didn't have the information.

3 0
3 years ago
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