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wlad13 [49]
3 years ago
6

What is a cell? How are they different from atoms?

Biology
1 answer:
Lapatulllka [165]3 years ago
4 0

Explanation:

Cells are the basic building blocks of all living things. The human body is composed of trillions of cells.

cells are bigger than atoms. We can see cells with a microscope. Just as atoms have smaller parts called protons, neutrons, and electrons, cells have smaller parts, too. When you look at cells with a powerful microscope, you can clearly see hundreds of them.

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Voluntary control of skeletal muscles is provided by the
lord [1]

The correct answer is: b. corticospinal pathway

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3 years ago
What can be inferred about a petrified log? the wood needed long ages before it could petrify the tree laid on the surface for l
RideAnS [48]

Answer:

the petrified log looks like the original tree.

Explanation:

A tree to be petrified first needs to be buried. An element laying on the surface can not be petrified because it is exposed to many different factors (such as<em> organisms, microorganisms, climatic conditions</em>, etc.), that affect the petrification process. So, in the case of a fallen tree, first, it needs to be covered by many sedimentary layers. Once it is underground, it also needs the presence of underground water and minerals. Water replaces the original organic material with minerals (silica, calcite, and pyrite). This replacement process results in the conversion of the woody material into a fossil of the original material. Very often, the tree details are so preserved that the fossil looks exactly like the original trunk.

Depending on the preservation degree, a fossil can be useful for different studies about the past.

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3 years ago
Analogous Structure<br> Definition
Diano4ka-milaya [45]

Answer:

some stuff you can just look up on goigle my dude

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3 years ago
Why are the seasons opposite in the northern and Southern Hemispheres
alex41 [277]

Answer:

throughout the year, the earth tilts. This causes the north pole to be the closest to the sun half the year and the south pole to be the closest to the sun the other half.

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3 0
3 years ago
Read 2 more answers
What is The dichotomous key
gayaneshka [121]

Answer:

A dichotomous key is an important scientific tool, used to identify different organisms, based the organism’s observable traits. Dichotomous keys consist of a series of statements with two choices in each step that will lead users to the correct identification.

Explanation:

Your welcome! :)

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