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MA_775_DIABLO [31]
2 years ago
9

A student examining leaf cross sections under a microscope finds many loosely packed cells with relatively thin cell walls. The

cells have numerous chloroplasts. What type of cells are they?
Biology
1 answer:
Ghella [55]2 years ago
3 0

Answer:

The answer is spongy mesophyll.

Explanation:

Between the upper and lower epidermis of a leave, you can find the so called mesophyll tissue which is rich in chloroplasts. There are two types of mesophyll tissue: the palisade and the spongy mesophyll. Whereas the cells of the palisade mesophyll are tightly packed, the cells of the spongy mesophyll are loosely packed.

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Which types of proteins help defend the body against foreign agents like bacteria?
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<u>Which types of proteins help defend the body against foreign agents like bacteria?</u>

<u>antibodies</u><u> </u>

<u>it's</u><u> </u><u>simple</u><u>.</u><u>.</u><u>.</u>

6 0
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Describe the effects of the various antibiotic drugs you used. Were they all equally effective at controlling bacterial growth?
Kipish [7]

Answer:

Basically, most   antibiotic drugs  are not  effective in controlling bacterial growth. The potency of any antibiotic drugs is a measure of the magnitude of  diameter of the  bacterial growth . <u>This is because the diameter   is the measurement of the bacterial growth around the antibiotic drugs used to control it multiplication, and therefore a  measure  of how effective  it  can controls the population</u> Thus a small diameter around the antibiotic agent is a proof that it suppressed the growth effectively and can effectively be used to control  the bacteria, While  a large diameter is an indication of low effectiveness of the drug.

Based on this analogy, penicillin with wide usage for control  of bacteria growth  with  diameter of 3mm, is the most effective antibiotic drugs.However, Erythromycin which is also widely used control growth with diameter of 5mm  or 6mm depending on   type of bacterial.

Therefore, the least 3mm  diameter presented by penicillin is an indication that , antibiotic drugs  are not effective enough, and further research need to be done to control growth of bacteria and therefore its   pathogenic  effects.  

Explanation:

8 0
3 years ago
Which branch of the autonomic nervous system (ans) mobilizes the body during extreme situations, such as rage or fear?
Shalnov [3]
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7 0
3 years ago
What are the functions and vessels of the heart, and what are some cardiac disorders that might be life-threatening to a person
zavuch27 [327]

Answer:

The cardiovascular, or circulatory, the system supplies the body with blood. It consists of the heart, arteries, veins, and capillaries. but the things that might be life-threatening to a person or animal are;

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- congenital heart disease, in which a problem with heart function or structure is present from birth.

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these are only a few that can harm or even kill a living thing like and animal or person these things are really harmful.

I hope this helps you!!

5 0
2 years ago
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