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WITCHER [35]
3 years ago
5

Explain the difference between chromatids and chromatin

Biology
1 answer:
Anna35 [415]3 years ago
5 0
The chromatids are made of a substance called chromatin. This is a single, very long strand of DNA. ... The chromatin is copied, so you now have 92 strands, that are each spiraled up to form the chromatids. The 2 copies of each chromatid are joined together by a centromere to form a chromosome.
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In phototropism, give examples of a positive and a negative response in a plant.
Ghella [55]

Answer:

Phototropism refers to the movement of of plant body or parts towards or away from the light. There are two types of phototropism i. e. positive phototropism and negative phototropism.

In positive phototropism, the parts of plant body moves toward light. Movements of radical in the upward direction after seed emergence is the example of positive phototropism.

In negative phototropism, the body part of plant moves away from the light. Roots are the example of negative phototropism.

8 0
3 years ago
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Which type of microscope is used to view very small cell components like proteins and DNA?
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The muscular system helps with ____ and the skeletal system helps with ____. Question 1 options: movement; oxygen exchange movem
Anna007 [38]

Answer:

The correct answer is movement; structure.

The muscular system helps with <u>movement</u> and the skeletal system helps with <u>structure</u>.

Explanation:

The human muscular system constitutes 40% of the total weight of our body and is made up of three types of muscles, which, together with different tendons and thanks to their contraction capacities, allow us to move. The muscular system and the function of the muscles allow the movement of our body and it is the one that works in tune with other systems of our body to guarantee normal general functioning..The skeletal system is the set of organs that support, shape, structure and protect the body. The skeleton is a dynamic structure, specifically the axial skeleton, it is to serve as a support or as a scaffold that supports the organs and structures of the body. This is how bones together with muscles work as a team to allow the mobility of the human body.

5 0
3 years ago
4. What are the consequences of planting seeds too deeply?
Lostsunrise [7]

Answer:

not much but planting too deep will make hard for your seed to germinate..

4 0
2 years ago
Where should the biosphere label appear in the system model? Use reasoning to explain your answer.
Leto [7]

Answer:

Biosphere is the one of the sphere of geological sphere of the earth such as geosphere, hydrosphere and atmosphere. It is deal with the interaction and existence of the living organisms.

In this model it can be seen that there are human, fishes, and vegetation of plants are living organisms so living organisms in the hydrosphere (fishes), geosphere (plants) and anthrosphere (human) should be label as biosphere instead of atmosphere or with atmosphere.

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3 years ago
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