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nadya68 [22]
3 years ago
11

I need help pweaseThe total amount of carbon on Earth is constant. True or False?​

Biology
1 answer:
Lilit [14]3 years ago
6 0

Answer:

True

Explanation:

Although the amount varies, the overall amount of carbon on earth is stable.

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9)
r-ruslan [8.4K]

Answer:

Its B I think (I'm not 100% sure)

Explanation:

3 0
3 years ago
How to get high affinity antibody?
Anit [1.1K]

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.

We are now coming up with a much better idea that is humanizing non-human primates mAbs instead of murine mAbs. Due to the close genetic relationship with humans, immunized NHPs have more potential to be isolated with high affinity antibody to human target than other experimental species, such as mouse, rat and rabbit. In addition, with appropriate method, NHP antibodies are much<span> easier to be humanized</span> without any loss of affinity compared to widely used murine antibodies. 

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

4 0
2 years ago
Which part of the brain is responsible for the maintenance of muscle tone and the coordination of muscle movements?
ella [17]
The answer is C.Cerebellum
6 0
3 years ago
Koala bears are restricted to living in a certain kind of habitat because they _____.
hodyreva [135]

The reason why Koala bears are restricted to live in a certain habitat is because they can only eat a certain type of eucalyptus leaf. These bears are indigenous to Australia. They are nocturnal and live in tropical where temperate eucalyptus forest can be found.

6 0
3 years ago
Read 2 more answers
If a 16-cell human embryo were carefully divided in half, what would be likely to occur? Explain.
Marina CMI [18]

Answer:

Twins occur.

Explanation:

If the embryo is divided into half by artificial methods such as microsurgical, twins occur in the female body. Both the embryo are identical to each other. twins means that there will be two babies formed at the same time in the body of female. After the separation of embryo, both the embryos are genetically identical to each other and it continue to develop into a new organisms.

5 0
2 years ago
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