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tresset_1 [31]
3 years ago
7

5. The nucleolus is a small, dense object found in the middle of the nucleolus. It makes the RNA and ribosomes for the cell.

Biology
1 answer:
zmey [24]3 years ago
4 0

Answer:

Mayor

Explanation:

If you have your nucleus of your cell set at city hall, I would recomend sayign your nucleolus is the mayor. This is because you can't have a properly functioning city hall without the mayor's instruction and you can't have a properly functioning nucleus with out the DNA instruction from the nucleolus.

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Arrange these components of the mammalian immune system as it first responds to a pathogen in the correct sequence. I. Pathogen
stepan [7]

Answer:

<u>III → IV → II → I → V</u>

Explanation:

The first response would be binding of antigenic determinants from pathogen to the receptors on lymphocytes then lymphocytes would become active and they increase their quantity followed by secreting antibodies that will eventually destroy the pathogen. Memory cells will recognize this pathogen as foreign body and they will always remember it.

8 0
3 years ago
if the substrate in the first image in the left of the diagram is a disaccharide (double sugar) such as sucrose,what is the enzy
otez555 [7]

The enzyme is a catalyst, meaning it is speeding up the chemical process.

4 0
3 years ago
DNA wrapped around histone proteins forms a material called ____ which condenses tightly to form _____ that can be seen with a l
makkiz [27]

Answer:

The correct answer will be-

1. Nucleosomes

2. Chromatin

3. Sister chroamtid

4. Centromere

Explanation:

The DNA is a very long molecule which if has to be passed on to the daughter cell as it is will cause problems. So, to reduce problems a cell form tightly packed structure of DNA so that they can be passed easily to the daughter cell.

The packaging of DNA begins with the wrapping of the DNA around histone proteins which forms the 11 nm basic structural units called nucleosomes. The nucleosomes start condensing each other and form 30 nm structure chromatin fibres.

The chromatin fibres undergo replication during S phase which produces an exact copy of the chromatin called sister chromatids bound to each other at a central point called centromere which helps the separation of the chromatids during M phase.

5 0
3 years ago
What geologic event most likely caused the folding and faulting of these layers?
kotegsom [21]

Answer:

<u>Folding and faulting-</u> The process in which the layers of the Earth are displaced or moved into a different position due to some forces acted upon them, as there are different reasons due to which the folding and faulting occurs.

  • The forces are so power full that they can bring the sediments of ocean to level or elevation above the sea level and can have a destructive effects for the living being. As there are various causes for folding and faulting of these layers,some of these forces are given below;

Explanation:

<u>Geological events causing the folding and faulting-</u>

<u>Tectonic Plates movement-</u> The parts of the Earth layer are always sliding over each other, and when they do they produce huge seismic waves. Which then causes the earthquakes, the folding and faulting of these layers.

<u>Volcanic eruptions : </u>It happens rarely as the number of gases and lava from inside the Earth, down from the crust move upward and erupts, producing dust in the atmosphere.

The other two geological causes are;

  • <u>Intrusive igneous activity,</u>
  • <u>subduction.</u>
  • <u></u>
7 0
3 years ago
What would be the flow of the water and salt in or out of the plant cells?
ANEK [815]

Answer:

When plant cells are surrounded with salt water, the water inside the plant moves from where there is more water (less salt) through the cell wall and membrane to the outside where there is less water (more salt).

Explanation:

7 0
2 years ago
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