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Bezzdna [24]
4 years ago
9

The cenozoic era began approximately _____ million years ago.

Biology
1 answer:
Bogdan [553]4 years ago
4 0
This began like about 65 million years ago 

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Describe what you believe a chemical rxn is ? Use the lab to describe it in 3 or more sentences.
SVETLANKA909090 [29]

Answer: A chemical reaction is the change of a substance into a new one that has a different chemical identity. In summary, a chemical reaction is a process that converts one or more substances to another substance. Chemical reactions start with reactants and convert them into products. Most chemical reactions inside living things are regulated by enzymes, which speed up chemical reactions.A chemical reaction is a process that changes or transforms one type of chemical into another. ... Life is the result of countless reactions happening all at the same time, most often between carbon, hydrogen, nitrogen, and oxygen atoms. Chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products. ... A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.

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8 0
3 years ago
Need help asap please
garik1379 [7]

Answer:

Emigration : The act of leaving one's own country to settle permanently in another; moving abroad.

Immigration: is the international movement of people to a destination country of which they are not natives or where they do not possess citizenship in order to settle as permanent residents or naturalized citizens.

Explanation:

3 0
3 years ago
In arteriosclerosis, overproduction of abnormal collagen and decreased quantities of elastin lead to what?
Tcecarenko [31]

In arteriosclerosis, overproduction of abnormal collagen and decreased quantities of elastin lead to Decreased coronary artery perfusion.

Arteriosclerosis is a condition in which the arteries, which transport oxygen and nutrients from the heart to the rest of the body, thicken and stiffen, often limiting blood flow to the organs and tissues. Flexible and elastic arteries indicate good health. However, the artery walls can stiffen over time, a phenomenon known as arterial hardening.

The accumulation of lipids, cholesterol, and other chemicals in and on the artery walls is known as atherosclerosis. The accumulation is known as plaque. Atherosclerosis can constrict the arteries and obstruct blood flow. The plaque may rupture and cause a blood clot.

Symptoms of arteriosclerosis:

  • chest pressure or discomfort (angina)
  • sudden numbness or weakness in the arms or legs.
  • speech slurs or speaking difficulties.
  • vision briefly lost in one eye.
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  • ache while walking.
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To know more about arteriosclerosis refer to: brainly.com/question/685228

#SPJ4

4 0
2 years ago
What is the correct term for organisms that consume other organisms in order to gain energy and are also known as consumers?
ivann1987 [24]

Answer:

Heterotrophs

Explanation:

A heterotroph is an organism that eats other plants or animals for energy and nutrients.

3 0
3 years ago
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