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Reika [66]
3 years ago
13

Part A Do you think three weeks (21 days) is enough time to observe all of the Moon’s phases? Why or why not?

Biology
1 answer:
AysviL [449]3 years ago
6 0

Answer:

No, I don't think so.

Explanation:

The reason is, in order to fully track the moon, you would need about 27 days because that is how long it take the moon to complete one full orbit around the Earth. However, if you don't think that you will need 27 days because some of the days there won't be a phase change then, that is up to you. Hope this helps.

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2 years ago
Which is an example of codominance? (1 point)
Dafna11 [192]

Answer:

roan coat color in horses

Explanation:

Codominance is one of the Non-mendelian inheritance patterns in genetics i.e. does not follow Mendel's principles of inheritance. Codominance is a phenomenon whereby an allele is neither dominant nor recessive to another in a gene i.e. one allele is not phenotypically expressed over the other. Hence, both alleles are simultaneously expressed in their heterozygous state.

An example of codominance is the roan coat color in horses where the colored (B) and white (W) alleles are both dominant in the coat color gene, hence, the horse expresses both black and white coat phenotypes known as ROAN (BW). The black and white alleles are said to be CODOMINANT.

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3 years ago
What is the primary source of energy in a food chain?
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2) the answer is the sun
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Answersamoeba sisters: video recap mitosis: the amazing cell process that uses division to multiply amoeba sisters video recap o
7nadin3 [17]

1.Mitosis is done by your body cells. What types of cells do not undergo mitosis?

Sperm cells and egg cells do not undergo mitosis. They undergo a different process of cell division called meiosis. The difference between the two types of cell division is that mitosis result in a replication of the parent cell or identical cells. Meiosis contributes to genetic variety, meaning the resulting cells are different from the parent cell in some way.

2.Describe  ways that mitosis is important for your body.

Mitosis is important for growth. Mitosis creates new cells as you grow. If you think about it, where do we get all the extra skin, longer bones, longer hair—they result from the division of cells which create new cells.

Another way it is important is in repair. When you get a cut for example, mitosis helps by producing more cells to repair the gash that was left. New cells fill in the part that was cut. Mitosis also helps with replacing worn out cells.

3. This illustration is trying to demonstrate something that mitosis is not. In mitosis, the cells that are created are identical.

The illustration shows that one type of cell produces a different type, but it is not the case with mitosis. The resulting cells of this type of cell division is identical or twins.

4.Mitosis is just one small part of the cell cycle! Describe what would occur if cells were in mitosis more than they were in interphase.

Interphase makes up most of the cell cycle, it makes up about 90% and mitosis occurs in 10% of the whole cycle.  If cells were in mitosis more than they were in interphase that would indicate an uncontrollable and rapid growth of cells and you can get cancer.

5.When cells are dividing, it is important to understand that they have to move chromosomes equally to both cells. Based on this illustration, describe what a chromosome is made of.

Chromosomes are condensed units found in the nucleus. There are 46 chromosomes each nucleus, or each cell. Chromosomes are made up of protein and DNA. DNA stands for deoxyribonucleic acid and it carries genetic information.

6. In humans, there are 46 chromosomes. They are duplicated during interphase, which in turn duplicates the DNA as well. Chromosomes are counted based on the number of centromeres. The number of chromosomes in living organisms or species differ from each other.  

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3 years ago
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What two things do Only plant cells have?
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