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USPshnik [31]
2 years ago
11

What does each phases of mitosis do in 2 short sentences each

Biology
1 answer:
Roman55 [17]2 years ago
3 0

Answer:

it can not be in 2 sentece

1) Prophase: chromatin into chromosomes, the nuclear envelope break down, chromosomes attach to spindle fibres by their centromeres 2) Metaphase: chromosomes line up along the metaphase plate (centre of the cell) 3) Anaphase: sister chromatids are pulled to opposite poles of the cell 4) Telophase: nuclear envelope .

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Once pathogens have penetrated the non-specific barriers, they are confronted by macrophages and natural killer cells. how do th
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Answer:

             When a pathogens cross non-specific barriers (skin) they disturb the homeostasis of the body. however inside body they are confronted by different types of white blood cells which are responsible for bringing homeostasis again in the body. these are described below.

Role of macrophages in maintaining homeostasis

Macrophages are white blood cells (phagocytes) constantly patrolling in the body and destroy other cells by engulfing and ingesting them through the process of phagocytosis. These are produced in bone marrow cells as monocytes which have short life of only 10-20 hours. Once monocytes leave the blood they become macrophages. From bone marrow to the blood, macrophages are transported to the area of the body where they are needed. Macrophages engulf the whole body, after digesting particles (bacteria) can extrude the residual particles. Thus, provide protection by trapping and destroying microorganisms entering the tissue. They also secrete different proteins. Some of these proteins trigger the maturation of monocytes into macrophages, thereby increasing their numbers. Another protein interleukin-1 signals the brain to raise the body temperature, producing fever. The higher temperature aids the immune response and inhibit the growth of invading microorganisms.

Role of natural killer cells in maintaining homeostasis

They are another class of white blood cells that don’t directly attack invading microbes. Instead they strike at the body’s own cells that have been invaded by viruses. Virus infected proteins bear viral proteins on their surfaces. Natural killer cells recognize and kill cancerous cells. They secrete proteins into plasma membrane of the infected or cancerous cells. They also secrete enzymes that break up some of the molecules of the target cells, as a result the target cell soon dies.


6 0
3 years ago
1. List 3 types of cephalopods.
SIZIF [17.4K]

The 3 types of cephalopods is octopus squid and nautilus and the 3 types of bivalves is gastropods bivalves and cephalopods

4 0
3 years ago
What role did morality (right & wrong) and/or religion play in your childhood and family life?
Step2247 [10]

Answer:

This question has to be made from your memories, I can't falsify your memories without personal information and im not going to ask you for that, so i can only answer the last one. For the last one you could say that you are a sweet tooth and happiness came in the form of sugar

Explanation:

7 0
3 years ago
How could you use iron filings to tell which of two bar magnets is stronger?
Romashka-Z-Leto [24]
<span>See which one is attracted more to the metal filings.</span>
5 0
2 years ago
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The genotype represents _____. a paired combination of genes either a dominant or recessive gene a given phenotype two alleles
MakcuM [25]

Answer:

The genotype represents two alleles.

Explanation:

The genotype represents two alleles. Because each pair of alleles represents the genotype of a specific gene.

5 0
3 years ago
Read 2 more answers
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