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oksano4ka [1.4K]
3 years ago
7

The secretion of a signal molecule by a cell into the local environment

Biology
1 answer:
Elodia [21]3 years ago
5 0

Answer:

paracrine signaling.

Explanation:

Chemical signaling between cells is one of the most important ways that activities of tissues and  organs are coordinated. The nervous system is the other major coordinating system in animals,  but even here chemical signaling is used between adjacent neurons. The mechanisms involved are  described as either being paracrine, autocrine, intracrine, endocrine, neuroendocrine or  pheromones. Paracrine signals diffuse locally and act on neighboring cells.

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Deshaun is determining which sources are most appropriate for his research project. Which step of research process is he on? A.
guapka [62]

Answer:

3: Evaluate Your Sources D

Explanation:

Deshaun  is determining which sources are most appropriate for his research project. Here he can evaluate a variety of sources such as newspaper articles, magazines, journals, or books, and websites. So, it is important for him to make sure that he includes only authentic any valid information in his research.

So, he needs to evaluate his sources using several criteria like:

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Using these criteria he can evaluate his sources to choose the best and appropriate one for him.

Hope it help!

5 0
3 years ago
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What happens to the actin and myosin during a muscle contraction?
GuDViN [60]

Answer:

<u>Once the myosin-binding sites are exposed, and if sufficient ATP is present, myosin binds to actin to begin cross-bridge cycling. Then the sarcomere shortens and the muscle contracts. In the absence of calcium, this binding does not occur, so the presence of free calcium is an important regulator of muscle contraction.</u>

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3 0
3 years ago
Which kind of transport do white blood cells use when they engulf and destroy bacteria?
Paraphin [41]
<span>phagocytosis, otherwise known as "cell eating". The cell takes it in by squeezing it through the cell membrane and creating a vesicle.</span>
3 0
3 years ago
the grouping that includes turtles, lizards and snakes, crocodiles and alligators, birds, and bats is: polyphyletic. monophyleti
nevsk [136]

The grouping that includes turtles, lizards and snakes, crocodiles and alligators, birds, and bats is monophyletic.

Monophyletic taxon : A team composed of a collection of organisms, together with the most current frequent ancestor of all these organisms and all the descendants of that most latest common ancestor. A monophyletic taxon is also called a clade.

Learn more about monophyletic here:

brainly.com/question/14436707

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7 0
2 years ago
I need to know 1-3 don't even know where to start
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1. 20 celsius
2. Because the temperature is increasing slightly
3. Because the Temperature is too high?

8 0
3 years ago
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