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Svetradugi [14.3K]
3 years ago
9

Where do the respiratory and circulatory systems meet?

Biology
1 answer:
Vanyuwa [196]3 years ago
8 0

Answer:

B

Explanation:

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Question 3
Yuliya22 [10]

Answer:

Agglutination test of antigen-antibody

Explanation:

Immunologic tests or methods are used to identify the presence of antibodies to a pathogen in the specimens of the patient.

Agglutination tests is an immunologic test used to identify the microbes in the specimens of the patient. In the agglutination test,  a specimen such as red blood cells are taken which are then coated with antigen, if antibody forms clumps with antigen, it shows visible clumping of bacterial cells against the particular antibody.

Hence, the correct option is Agglutination test of antigen-antobody.

4 0
3 years ago
Name four RNA viruses that jumped from animals to humans.
MatroZZZ [7]

Explanation:

SARS, Ebola, swine flu, rabies

5 0
3 years ago
Read 2 more answers
The form allows for an object to carry out a specific _________ .
MatroZZZ [7]

Answer:

responsibility

Explanation:

im not pretty sure if that's right but I hope that helps

5 0
3 years ago
Penetration of the egg' zona pellucida by the sperm cell is a process driven by
Lina20 [59]
Penetration of the egg' zona pellucida by the sperm cell is a process driven by hydrolytic enzymes.  
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The critical step in fertilization is binding between sperm receptors and glycoproteins on the zona pellucida. This is the trigger for the acrosome reaction which includes an influx of CA and a rise in pH and cAMP levels within the sperm head. As a result, the plasma membrane of the sperm fuses with the outer acrosomal membrane and the exocytosis of the acrosomal<span> vesicle occurs. Components of the acrosome, like hydrolytic enzymes, are released and they degrade the <span>zona pellucida allowing</span> the sperm to move </span>inside.</span>
6 0
3 years ago
Can science exist without human beings?
denis-greek [22]

Answer:

yes

Explanation:

science can exist with/without human

7 0
3 years ago
Read 2 more answers
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