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uysha [10]
2 years ago
10

In an ecosystem, organisms can be divided into producers and consumers. Producers are organisms that use sunlight directly for f

ood. Consumers are organisms that eat producers. At which level(s) do producers inhabit the energy pyramid above?
A.

Level 1 (bottom)

B.

Levels 2 and 4

C.

Level 4 (top)

D.

Levels 1 and 2

Study island question
Biology
1 answer:
saul85 [17]2 years ago
4 0

Answer:

A

Explanation:

Producers have very few defenses which makes them very vulnerable to prey animals.

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Human monoclonal antibody (mAbs) are emerging in the field of cancer therapy and have become an increasing proportion of new drugs that are recently approved. Although there are some methods to obtain antigen-specific mAbs from human B cells, it is generally impossible to directly immunize human beings with antigens of interest. For example, for infectious agents, those approaches are largely restricted. To solve these obstacles, two main approaches have been developed; either by humanizing antigen-specific antibodies from small experimental animals (which is laborious due to the great genetic differences from humans) or rely on the in vitro selection of antigen-specific binders from human antibody repertoires. However, the human mAbs developed by these methods are usually with low affinity.

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Resource: http://www.creative-biolabs.com/High-Affi-TM-Human-Antibody-Discovery.html

4 0
2 years ago
An obligate anaerobe is an organism that would die in an oxygenated environment. What could be assumed about these organisms?
makkiz [27]
The correct option is C.
Obligate anaerobes are micro organisms that are poisoned and killed when exposed to the normal atmospheric oxygen concentration. These organisms can only survive in the absences of oxygen, therefore, they carry out only anaerobic form of respiration in order to obtain the energy that they need. <span />
7 0
2 years ago
Read 2 more answers
Mr. Duarte, now age 32, was diagnosed with diabetes mellitus when he was 14 years old. He takes insulin in the morning and the e
Alex777 [14]

Answer:  Typed 2 diabetes; because plasma glucose molecules are retained in the blood and  not able to enter     the cells.

Explanation:

He suffered from type 2 diabetes because,  the ketoacidosis was due to  breakdown of fats in the liver  due to low glucose in the cells, while the hypoglycemia was due to   retention of  plasma glucose in the blood instead of entering the cells.

3 0
2 years ago
What element is necessary for the production of thyroid hormone?
liubo4ka [24]

Answer:

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Explanation:

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Iodine majorly and selenium are the two trace elements needed for thyroid hormones synthesis. Therefore required amount of iodine is important in daily diet. iIn adequate supply of this leads to under production of iodine called hypothyroidism. poor brain development ( especially in kids),and goiter.

Sea foods . eggs, poultry seaweeds are rich sources of iodine.

Conversely, when  excessive amount is present in the blood, autoimmune thyroid diseases can occur,including cancer developments in the thyroid gland due to hyper cell activities.

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Which structures are listed in order from the most to the least complex?
stepan [7]
I believe that the correct answer is A
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