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rusak2 [61]
3 years ago
13

Why is good habitat important for animals?

Biology
1 answer:
Setler [38]3 years ago
6 0
Because if animals dint have a good habitat they wont have a desent place to bd in
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What are the reasons for the several day delay in a primary response. Infection______. A. transport to secondary lymphoid tissue
Liula [17]

Answer:

The correct answer is D. proliferation and differentiation.

Explanation:

Primary immune response occurs due to the first exposure of an antigen to the immune system. The primary immune response is generally delayed by many days because it takes time for B and T cells to become cloned and to proliferate and differentiate.

Then after several days of proliferation and differentiation of activated T and B cells, T cells become effector T cells and B cell becomes plasma cells which then eliminates the antigen. Memory B and T cells are also produced during this process which helps in generating a quick immune response during the second and subsequent exposure of that antigen.

So the correct answer is D. proliferation and differentiation.

7 0
3 years ago
If something is burned a reaction has occurred <br><br>​
nalin [4]

Answer:

true

Explanation:

When the reactants are heated, the average kinetic energy of the molecules increases. This means that more molecules are moving faster and hitting each other with more energy.

HOPE IT HELPS

4 0
3 years ago
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The complex of dna and protein that makes up a eukaryotic chromosome is properly called __________.
victus00 [196]

The complex of DNA and protein that makes up a eukaryotic chromosome is properly called <u>chromatin .</u>

<u></u>

  • Chromatin is a complex of DNA and proteins that forms chromosomes within the nucleus of eukaryotic cells.

What is the chromatin and its function?

  • To create chromosomes, chromatin fibers are coiling and condensing.
  • Numerous cellular functions, including DNA replication, transcription, DNA repair, genetic recombination, and cell division, are made possible by chromatin.

What is chromatin in cell?

  • Chromosomes in eukaryotic cells are made of chromatin, a compound of DNA and proteins.
  • Nuclear DNA is extremely compressed and wrapped around nuclear proteins in order to fit inside the nucleus; it does not exist as free linear strands.

Where is chromatin found?

  • Chromatin is a genetic material or a macromolecule comprising DNA, RNA, and associated proteins, which constitute chromosomes in the nucleus of a eukaryotic cell.
  • This chromatin is located within the cell nucleus.

Learn more about chromatin

brainly.com/question/11073325

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5 0
1 year ago
Which mitosis phase is this?<br> Prophase<br> Metaphase<br> Anaphase<br> Telophase
ziro4ka [17]
The answer is: anaphase
7 0
3 years ago
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Which of the following modifies and smoothes the respiratory pattern?
stealth61 [152]

The correct answer is: A) pontine respiratory centers

The respiratory centre in the pons is responsible for generating and maintaining the rhythm of respiration. Besides this elementary function, it also has the ability to adjust respiration rhythm in c response to physiological changes. Respiratory centre consists of three major respiratory groups of neurons:

•  The dorsal respiratory group (DRG)- initiates inspiration (inhalation)

• the ventral respiratory group (VRG)-responsible for exhalation

• Pontine respiratory group- includes the pneumotaxic (controls both the rate and the pattern of breathing) and apneustic centers (promotes inhalation by sending signals to dorsal group).

6 0
3 years ago
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