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andrey2020 [161]
2 years ago
14

If you found the same gene in all organisms that you tested, what does this suggest about the evolutionof this gene in the histo

ry of life on
earth
Biology
1 answer:
11111nata11111 [884]2 years ago
3 0
This means that we all are the descendants of one ancestor !! thus our genes match !!
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What is the function of the xylem in vascular plants?.
Kamila [148]

Answer:

answer below

Explanation:

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hope this helps

6 0
1 year ago
You observe a small, nonpolar molecule near a membrane. how would this molecule likely transport across the membrane? you observ
yaroslaw [1]
It will transported across plasma membrane by simple diffusion. simple diffusion refers to a process by which molecules will pass across plasma membrane without the aid of channels located on the surface of the membrane. since the molecule identified was polar once it enter in hydrophobic region of the membrane it will not stick since this region is non-polar and therefore it will move easily across that region. 
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3 years ago
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Be able to compare/contrast humoral immunity with cellular immunity.
aksik [14]

Solution:

The difference between them are:


The humoral system of immunity is also called the antibody-mediated system because of its use of specific immune-system structures called antibodies. The first stage in the humoral pathway of immunity is the ingestion (phagocytosis) of foreign matter by special blood cells called macrophages. The macrophages digest the infectious agent and then display some of its components on their surfaces. Cells called helper-T cells recognize this presentation, activate their immune response, and multiply rapidly. While,


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This is the required answer.

6 0
3 years ago
Help me plz. I need help with this. I don't get it. plz help me,
tamaranim1 [39]

Answer:

hydrogen=white sphere

nitrogen= striped sphere

carbon= gray sphere

oxygen= dotted sphere

8 0
2 years ago
In which form do plants store energy?<br> starch<br> glycogen<br> chitin<br> cellulose?
larisa [96]

Answer:

<h2><em><u>starch</u></em></h2>

Explanation:

Plants store carbohydrates in long polysaccharides chains called starch.

7 0
2 years ago
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