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RoseWind [281]
3 years ago
15

Which structure is the arrow pointing to

Biology
1 answer:
Vikki [24]3 years ago
6 0

Answer:

Nucleus

Explanation:

It is the unit of heredity and it controls the activities of the cell

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How does mitosis division maintains the number of chromosomes in an individual
adell [148]

During mitosis division, each chromosome is duplicated, and then the cells are divided in half. Because there are two copies of the chromosome, the two resulting cells have the same number of chromosomes compared to the first cell.

3 0
3 years ago
If you were to magnify a cell 10,000-fold (typical of the magnification achieved using an electron microscope), how big would it
Amiraneli [1.4K]
In this case i am supposed to use the formula of magnification as indicated in the here 

Magnification=size of the image divided by the size of the object

so in this case we have been given magnification and the size of the object

magnification=×10, 000 and size of the object=50 micrometer

size of the image=10000×50
                           =50,0000 micrometers
5 0
3 years ago
Fishes and other animals that descend lose contact with the main surface food supply and themselves become food for strange deep
alina1380 [7]

Answer:

True

Explanation:

The organisms which sink deep into the sea usually die due to various reasons. This argument can be supported from the fact that plants which are located in the depths of the sea cannot maintain themselves as they cannot photosynthesize in the depths of the sea. As a result they die.

On the other hand, fishes and other animals which move to the depths of the sea are not adapted to live in such environments and become food for other strange animals present there.

3 0
3 years ago
Which of the following describes light as a wave?
lora16 [44]
Light is a transverse wave and this is what describes light as a wave. The correct option among all the options that are given in the question is the first option. Light is not at all similar to water and sound. It would be a big mistake to consider light as similar to the mediums water and sound. I hope the answer helps.
8 0
3 years ago
Read 2 more answers
The most primitive true animal belongs to the phylum ____.
VMariaS [17]

Answer:

Porifera or Sponges

Explanation:

Porifera is the phylum of the simplest multicellular marine animals. Their body is composed of  two cell layers (something like tissues) and mesophyl between them. The body is in direct contact with surrounding water through the large number of pores and channels. What makes Sponges so simple is that their cells are unspecialized and that they  don't have nervous, digestive or circulatory systems.

6 0
3 years ago
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