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Zinaida [17]
3 years ago
5

Which is an example of an external stimulus?

Biology
1 answer:
Fynjy0 [20]3 years ago
5 0

Answer:

A sudden change of air temperature is an example of external stimulus

Hope this helps :)

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What do people use energy for?
olga nikolaevna [1]

Answer:

it depends what kind of energy your taking about, like human energy or nonrenewable energy. If it is human energy then the option c, but if it is nonrenewable energy than b.

Explanation:

the other options aren't very logical

3 0
3 years ago
Acting as levers for movement is a function of ______.
sashaice [31]

Acting as levers for movement is a function of: bones.

Movement can be defined as a process through which several skeletal muscles in the body systems act together as a group, in order to cause a change in the motion of a body part.

Basically, bodily movement are produced when skeletal muscles exerts a force on the tendons, which in turn pull on the bones (levers) and other supporting structures such as the skin.

In the body of living organisms, bones act as levers for movement by enhancing limb speed or power of limb movements while joints act as a fixed point of movement (fulcrum).

Read more: brainly.com/question/24279781

6 0
3 years ago
Why do plant need food
erma4kov [3.2K]

Answer:

They need food in order to gain the initial energy they need.

Explanation:

Plants unlike humans don't get food by primary sources (aka, hunting). instead they retrieve their food from the suns rays. Without the suns rays they are able to convert this energy into glucose for themselves, and will essentially die because they do not have that source of food to give them the energy they need to survive.

8 0
3 years ago
Passive immunity in a person is acquired from antibodies produced during infection in that person.
STatiana [176]
It would be B. False
3 0
3 years ago
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Which of these is the best source of stem cells and minimizes the risk associated with stem cell transplantation
garri49 [273]
<span>The best source of stem cells which also minimizes the risk associated with stem cell transplantation</span>  are stem cells preserved from the umbilical cord of the person. <span>Stem cell transplant is the process in which diseased cells are replaced by the stem cells collected at the time of birth from umbilical cord blood or bone marrow.</span>
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3 years ago
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