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SpyIntel [72]
3 years ago
7

Which of the following statements about weathering is true?

Biology
2 answers:
galben [10]3 years ago
8 0

Answer:

movement is required for weathering to take place

umka21 [38]3 years ago
4 0

Answer:

the correct answer is A

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A person's blood type is determined by the:_______
matrenka [14]

Answer:

) Presence of specific glycoproteins on the cell membrane

Explanation:

When specif glycoproteins(antigens)  or antibody are present on a cell membrane of Red blood cell,they can  be used to identify the blood type.Antigens are substances capable of triggering an immune response in a cells.

In addition,they function in transport of molecules across the RBC. They help in the maintenance of the RBC,and aiding the arrest of cells capable of causing diseases to the body.

Therefore,they are good determinants of blood types,based on this two types of antigens present in a  blood type.

These two antigens  used for classification of blood types are the 1-the ABO antigens 2,the Rhesus antigens.

Essentially,when a WBC produces an antibody ,which is a molecule that defends the body,If this is not compatible,the antibody will recognize it as a foreign body and attack it.Thus such blood types are not compatible. Thus the antibody-antigen reaction are good for knowing and classify blood types.

Antigen can also be glycoprotein,carbohydrate or glycolipids.

Generally blood types are inherited from both parents.Therefore the antigen present on the RBC are combination of the alleles from each parent.

4 0
3 years ago
Is this statement true or false?
Helga [31]
All organisms do have a closed circulatory system 
so A <span />
6 0
3 years ago
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Enzymes change the ___ of the reaction but not the ___ of the end product.
Elodia [21]

Answer:

BIG GD

Explanation:

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8 0
3 years ago
Hola i need sum help pls
kykrilka [37]

Answer:

Oxygen is used to break down sugar and sugars release energy

7 0
2 years ago
If a parent cell has 48 chromosomes, how many chromosomes will each daughter cell have after mitosis and cytokinesis occurs? 24
Alik [6]
You are correct they will have 24 chromosomes
8 0
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