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ELEN [110]
3 years ago
9

20. Many years 90, scientists working with cells developed what is now known as the

Biology
1 answer:
serious [3.7K]3 years ago
8 0

Answer:

By the late 1830s, botanist Matthias Schleiden and zoologist Theodor Schwann were studying tissues and proposed the unified cell theory. The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells

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The primary means for transmitting messages between the brain and the rest of the body is the ______.
Nesterboy [21]

Answer:

The primary means for transmitting messages between the brain and the rest of the body is the <u>spinal cord</u>.

Explanation:

The spinal cord is the main pathway of the nervous system. The impulses are transmitted to the brain through bundles of ascending nerve fibers, while the descending fibers transmit impulses in the opposite direction. Signals are transported to and from different parts of the body along the fibers of the pair of spinal nerves, which form intersections with the spinal cord through their dorsal and ventral roots; the sensory and motor fibers converge in the gray matter of the medulla.

5 0
3 years ago
Organic sedimentary rocks are _____. made of dissolved minerals formed from heat and pressure made from the remains of living or
Nitella [24]
The answer is 3. <span>made from the remains of living organisms.

Sedimentary rocks are formed at Earth's surface. They can be clastic, chemical, and organic.
Clastic sedimentary rocks are the result of sedimentation of rocks and mineral fragments. Chemical sedimentary rocks are the result of sedimentation of chemical solutions of dissolved minerals.
<em>Organic sedimentary rocks are made from the remains of living organisms, fossils and corals.</em>
</span>
3 0
3 years ago
The biosphere is made of different kinds of matter. Which substance is an
Sedaia [141]

Salt is the Inorganic matter.

Option D.

<h3><u>Explanation:</u></h3>

Organic matters are defined as those compounds of carbon expect the carbonates, bicarbonates, cyanides etc. These compounds were primarily thought to be produced only from the living organisms and were unable to be produced in laboratory. But later they were being produced in laboratory too.

Inorganic compounds are all the compounds except the organic ones.

Here, in the question, we see the compounds -

Protein - it's the polymer of amino acids which contain carbon, and isn't carbonates or bicarbonates, cyanides etc.

Carbohydrates and sugars are also similar to proteins which contain carbon and isn't the exceptions. So they are also the organic compounds.

But salt, commonly table salt is sodium chloride which doesn't contain carbon, so is Inorganic.

7 0
3 years ago
Which of the following is an example of a good nutrition goal?
juin [17]

Answer:

all of the above

Explanation:

4 0
2 years ago
Read 2 more answers
16. Which excretory organ helps to control the water potential of the tissue
Yanka [14]

The answer is a Kidneys

5 0
3 years ago
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