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Marianna [84]
3 years ago
10

Fossils layers 175 mya, 250 mya, 400 mya, 450 mya

Biology
1 answer:
Alenkinab [10]3 years ago
8 0

450 mya, is where you would find fossils.

Explanation:

The first layer would be newer organismis that haven't quite decayed yet.The second and third layer is where the bones of the dead organasims lie, they havent quite been through the whole process yet, but they are nearly complete just about 100,000 years left.The fourth layers have been through alot, and have been there for many many years we can say abot 100,000,000 years.They are ready to become a fossil fuel.

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When an atom or molecule gains one or more electrons, it is said to beA. reducedB. polarizedC. oxidizedD. energized
MArishka [77]
Ƒ An atom that gains one or more electronswill have a NEGATIVE charge. ƒ An atom that loses one or more electrons will have a POSTIVE charge. ƒ An atom that gains or losesone or more electrons is called an ION. ƒ A positive ion is called a CATION and a negative ion is called an ANION.

From this information above you can see its negative so it means it gets reduced
hope it helped

In this reaction the lead atoms gain anelectron (reduction) while the oxygen loses electrons (oxidation). Magnesium loses electrons and is therefore said to be "oxidized", whereas the chlorines gain electrons and are said to be reduced
and as you can see oxidation only happens when oxygen is reduced
4 0
3 years ago
The long bundle of neurons that carries messages to and from the body to the brain and is responsible for very fast, lifesaving
olga2289 [7]

The long bundle of neurons that carries messages to and from the body to the brain and is responsible for very fast, lifesaving reflexes is called the<u> spinal cord. </u>

<h3>What is the espinal cord?</h3>

There are two organs involved in the central nervous system that function as control centers,

  • The brain,
  • The spinal cord.

The spinal cord is a nerve tube placed in a hollow space left between vertebras along the vertebral column. The vertebrae's body protects the spinal cord.

It is made of nerves that take orders from the brain to the rest of the body and send messages from the body to the brain.  

Reflexes acts are produced in the medulla, and the brain is not involved.

The nervous cells of the medulla have fibers that extend from the medulla to the body and are connected to sensory receptors.

When receptors receive stimuli, they send information to the nerve fibers, which take it to the brain. From the brain, they send a response.

The answer is spinal cord.

You can learn ore about the spinal cord at

brainly.com/question/6957362

brainly.com/question/15707666

6 0
2 years ago
If blood cells are placed in a hypertonic solution, ___________a. the cells will shrink due to water loss by the cell. b. the ce
yKpoI14uk [10]

Answer:

The correct answer is option a. "the cells will shrink due to water loss by the cell".

Explanation:

Cells placed in a hypertonic solution will shrink due to water loss by the cell. An hypertonic solution has a high content of solutes dissolved, which makes it a solution with high tonicity. Water tends to move from a solution of low tonicity to a solution with high tonicity. As a result, cells placed in a hypertonic solution will start to loss their inner water and shrink, which causes its death.

4 0
3 years ago
Which of the following statements describes a benefit of most cells being
arlik [135]

Answer:

Small cells have a smaller surface to volume ratio than longer

4 0
3 years ago
A covalent bond is likely to be polar if _____________
Sidana [21]

Answer:

The correct answer d. one of the atoms sharing electrons is much more electronegative.

Explanation:

If one of the atoms is more electronegative than the others, like the oxygen in the water molecule, it will allow this atom to attract the other's electrons turning itself into a negative pole and turning the others into a positive pole. In the water, oxygen is more electronegative and that's why it becomes the negative part and the hydrogens become the positive.

3 0
3 years ago
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