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SpyIntel [72]
3 years ago
6

__________ are secreted by cells infected with viruses, alerting neighboring cells and protecting them from becoming infected.

Biology
1 answer:
Juliette [100K]3 years ago
6 0
Histamine is released when a cell come across an antigen

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Why does a hormone only act on specific cell types in an organism and not others?
Vilka [71]

Answer:

c) A cell must have the appropriate receptor before it can bind to the hormone.

Explanation:

Hormones are chemical signals that are secreted into the circulatory system acting as regulators within the body, and even though they can reach any part on the body, <em>only certain types of cells are equipped to respond, these cells are known as target cells, when the hormone reaches a cell with an adequate receptors it triggers a signal transduction and then a response.</em>

Therefore the correct answer is c.

I hope you find this information useful and interesting! Good luck!

5 0
3 years ago
Define the following:<br> Cellular Respiration+ fermentation
slamgirl [31]

Explanation:

Fermentation is another anaerobic (non-oxygen-requiring) pathway for breaking down glucose, one that's performed by many types of organisms and cells. In fermentation, the only energy extraction pathway is glycolysis, with one or two extra reactions tacked on at the end.

6 0
3 years ago
Which of the parents can pass the allele for hemophilia to a son? Explain.
lilavasa [31]
The father determines if its male or female. So the father is the carrier and the allele is on the Y chromosome.
6 0
3 years ago
Human proteins can be produced by cells in the milk-producing mammary glands of transgenic mammals if the regulatory sequence of
Vesnalui [34]

Answer:

The given blank can be filled with location of gene expression.

Explanation:

A regulatory sequence refers to a section of a molecule of nucleic acid that possesses the tendency of declining or upsurging the expression of particular genes within an organism. The regulation of gene expression is an important characteristic of all living species and viruses.  

In the given case, it is essential to use the regulatory sequence of a milk gene when developing a recombinant gene as a regulatory sequence monitors the location of gene expression.  

4 0
3 years ago
Francis thinks that the longer a plant is in light, the more fruit it will produce. He places one group of ten plants under a UV
Andreas93 [3]

Answer:

Choose the correct label for each part of the experiment.

The plants that are under a UV light for eight hours

A. Experimental group

The amount of water that is given to all of the plants

D.  controlled Variable

The plants that are under the light for six hours  

B. Control Group

Explanation:

6 0
3 years ago
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