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makvit [3.9K]
3 years ago
12

Before organisms with nuclei evolved, life on earth consisted only of unicellular

Biology
1 answer:
Free_Kalibri [48]3 years ago
8 0
These organisms that consisted only of unicellular were called prokaryotes. 
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Ripples in water are more formally known as capillary waves, and are caused by the subtle interaction of wind and water, or the physical interaction of the water with another object.

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What are the functions and vessels of the heart, and what are some cardiac disorders that might be life-threatening to a person
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The cardiovascular, or circulatory, the system supplies the body with blood. It consists of the heart, arteries, veins, and capillaries. but the things that might be life-threatening to a person or animal are;

Explanation: angina is a type of chest pain that occurs due to decreased blood flow into the heart this can harm animals and people. there is also - - - arrhythmia,which is or an irregular heartbeat or heart rhythm,

- congenital heart disease, in which a problem with heart function or structure is present from birth.

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- Heart attack, or a sudden blockage to the heart’s blood flow and oxygen supply this can kill. heart failure, wherein the heart cannot contract or relax normally,

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- hypertrophic cardiomyopathy, in which the heart muscle walls thicken and problems with the relaxation of the muscle, blood flow, and electrical instability develop

these are only a few that can harm or even kill a living thing like and animal or person these things are really harmful.

I hope this helps you!!

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2 years ago
Which of the following is indicated by the arrow in the image?
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Do you have a picture? It would really help answer your question

8 0
3 years ago
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Why would you probably not see a volcano on the east coast of the United States?
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D. There are no major fault lines or hot spots close by.

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Because "The composition of the rock in that area is not conductive to eruptions." they type of rock doesn't play that much of a role in the formation of volcanoes

Because "The magma doesn’t have enough silica or gas to form an explosive eruption." It isn't a gass that is found, it is the build up of pressure from fultlines moving and things on the inside of the earth.

Please Mark Branilest!

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3 years ago
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