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Semenov [28]
3 years ago
14

You are able to fluorescently label a cell in a chick embryo and watch it over the course of a few days. On the first day, the c

ell looks like most others around it, but over time, you notice that it fuses with other cells and elongates to form long multinucleated tubes. What best describes the process you have observed?
A. differentiation
B. commitment
C. determination
D. specification
Biology
1 answer:
Nezavi [6.7K]3 years ago
7 0

Answer:

A. differentiation

Explanation:

Cell differentiation consists of a set of processes that transform and specialize embryonic cells. After these transformations, their morphology and physiology are defined, which make them capable of performing a certain function.

We call differentiation in biology the process that all living cells go through to specialize in a particular function. These cells, despite being differentiated, continue with the same genetic code as the first cell, and the difference between them is in inhibiting or activating certain groups of genes - these responsible for defining the function of each of them. This, in addition to determining its function, entails some changes in cell structure, as happened with the cell described in the question, which promoted a change in its structure by merging with neighboring cells to form a multinuclear tube.

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Identify the phase of the moon labeled C that would be seen from the earth labeled B
mariarad [96]

Answer:

The correct answer is - a lunar eclipse (total lunar eclipse).

Explanation:

When the sun and moon align opposite one another and earth between them and blocks the light of the sun to reach the moon known as a lunar eclipse. A lunar eclipse can be a partial or total lunar eclipse.

A partial lunar eclipse occurs when a part of the earth covers the moon to get the light or between the sun and the moon. The total lunar eclipse occurs when the whole moon is opposite to the sun and earth between them.

5 0
3 years ago
One of your classmates says that the pollution from his car doesn't harm the environment because the exhaust is warm and warm ai
dimaraw [331]

Unfortunately no, my friend is not correct. The CO2 pollutants leaving his exhaust are warm, yes, but that is why our atmosphere is creating global warming which is affecting climate in all regions. When there is more people that means more cars and more pollutants being dispersed into our atmosphere.

4 0
4 years ago
In the family tree below, people with the recessive trait of attached earlobes are shaded gray
serious [3.7K]
<h2><u>Full Question:</u></h2>

In the family tree below, people with the recessive trait of attached earlobes are shaded gray.

What must be true about the person labeled "A"?

A. It is a male with at least one dominant allele.

B. It is a male with two dominant alleles.

C. It is a female with at least one dominant allele.

D. It is a female with two dominant alleles.

<h2><u>Answer:</u></h2>

Its a male with atleast one dominant allele.

Option A.

<h3><u>Explanation:</u></h3>

The gene for the attached earlobe is recessive while the gene for the free earlobes is dominant. In the phylogenetic tree, we can see that both the father and mother aren't having attached earlobes. So both of them are having atleast one dominant allele which makes them have free earlobe.

In the F1 offsprings, one of the female and a male is having free earlobes. So both of them have atleast one dominant allele. The 2nd female is having an attached earlobe. So both the recessive allele have come form one parent each. So both of them are heterozygous.

Thus, the male marked as A atleast have one dominant allele. He can be a homozygous dominant, but the probability is 25%.

8 0
3 years ago
Beth learned in her science class that white blood cells in the human body capture harmful material by engulfing them. Then they
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5 0
3 years ago
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What is the function of cartilage in adult bones?
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Answer:

preventing friction between bones

8 0
4 years ago
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