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marta [7]
3 years ago
14

What's the difference between a TEM microscope and a SEM microscope? Please explain in detail.

Biology
1 answer:
docker41 [41]3 years ago
4 0
Tem and sem microscope are categorised with number of lens
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What does the biological species concept use as the primary criterion for determining species boundaries?
Marysya12 [62]

Answer:

The correct answer is C) gene flow

Explanation:

The biological species concept defines what is a species. It says that a species is a group of individuals in a population that interbreed with each other. So there should be gene flow between the members of the population to come under species.

Appearance does not define that two individual are of same species because even different species can look same for example Western meadowlarks and eastern meadowlarks looks identical to each other but they do not interbreed so there is no gene flow between them so they are not same species.  

Therefore the primary criteria for determining species boundaries is gene flow.

4 0
3 years ago
pushing your body to its limits to encourage your body to make physiological changes describes which principle?
zavuch27 [327]
The overload principle
8 0
2 years ago
Many of the hardest rocks are metamorphic rocks. Why do you think metamorphic rocks are harder than sedimentary rocks?
-BARSIC- [3]

Answer:

Metamorphic rocks are almost always harder than sedimentary rocks. They are generally as hard and sometimes harder than igneous rocks. They form the roots of many mountain chains and are exposed to the surface after the softer outer layers of rocks are eroded away.  

Because their mineral grains grew together tightly during metamorphism, they're generally strong rocks.

5 0
3 years ago
Can someone do 13-16 plsssssss
bixtya [17]

Answer:

-3

Explanation:

3 0
3 years ago
The humpback whale is a large marine mammal that lives wide spread throughout the North Pacific Ocean. Barnacles are small marin
hodyreva [135]

Answer:

commensalism

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the barnacles benefit from the whale while the whale doesn't but the whale isn't harmed either

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3 years ago
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