How do index fossils help scientists?

Biology

1 answer:

qaws [65]2 years ago

4 0

Answer:

Index fossils are used by both geologists and paleontologists to study the rocks and species of the past. They help to give a relative age for the rock layers and other fossils found in the same layer.

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What is the name for all physical matter in the universe

Feliz [49]

I believe the answer you're looking for is in your question.
Matter is the name for all physical material in the universe.

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3 years ago

Biology homework please help

ludmilkaskok [199]

Answer:

muscles

ribs

lungs

bronchioles

alveoli

diffuses

leaves

exchange

Explanation:

Your diaphragm, and muscles between your ribs, make air move in and out of your lungs. It travels through the trachea, bronchi, and bronchioles to alveoli. In the alveoli, oxygen diffuses into the blood and carbon dioxide leaves. This is gas exchange.

Air enters the lungs and leaves it as a result of the relaxation and contraction of the diaphragm and the muscles between the ribs. When both the muscles and the diaphragm relax, air enters from the trachea and travels through the bronchi and the bronchioles to the alveoli, where the oxygen in the air diffuses into the blood and carbon dioxide diffuse in the opposite direction. The entire process is known as gas exchange.

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Over various spans of time, human populations have increased, decreased, or remained the same, and at both global and local leve

yan [13]

Answer:

The correct option is C) Like other populations, the human population is affected by a variety of factors in the environment.

Explanation:

According to the theory of natural selection, those organisms which are better able to live and survive in an environment are able to live and reproduce. The same case goes in the scenario of humans.

Certain environmental factors make the Earth favorable enough for humans to multiply rapidly. Other factors such as a disease or infection outbreak may result in unfavorable conditions for the humans. As a result, the population of humans will decline.

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The temperature of an object is directly related to

nika2105 [10]

Answer:B. the motion of its particles

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Meiosis vs. mitosis

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