Which of the following are likely to be studied by a biologist? Group of answer choices

The choir is lining up on stage in three rows there are 24 choir members in each row. how many choir members are there?

Leya [2.2K]

There are 72 choir members. This is 24 times 3 = 72. We need to do this operation to find how many people there are in total. It's a bit confusing to explain, but if you need more help, just tell me! Once you get better, you'll understand when to multiply. I hope this helps! :D

6 0

2 years ago

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2. Beginning with the superior vena cava, trace the path followed by a red blood cell as it passes into and through the heart, t

Katen [24]

Answer:

BLOOD PATHWAY:

Body > superior and inferior vena cava > right atrium > tricuspid valve > right ventricle > pulmonary semilunar valve > pulmonary artery > lungs > pulmonary vien > left ventricle > bicuspid/mitral valve> left ventricle > Aortic semilunar valve > Aorta > Body

The pathway goes like this:

From the body (we don't say first because this is a cycle), unoxygenated blood collected goes to the heart via the INFERIOR and SUPERIOR VENA CAVA then it empties into the RIGHT ATRIUM from there it passess through a valve called TRICUSPID valve, which prevents backflow of blood to the right atrium. The blood goes to our first pumping chamber, RIGHT VENTRICLE. The right ventricle pumps the blood through the PULMONARY SEMILUNAR VALVE which leads to the PULMONARY ARTERIES, which happens to be the only arteries that carry unoxygenated blood. From there it goes to the lungs to pick up oxygen and rid itself of carbon dioxide. The blood then goes back into the heart via the PULMONARY VEINS and like the latter, they are the only veins that carry oxygenated blood.

The blood then goes back into the heart, emptying into the LEFT ATRIUM. From there it goes through the BICUSPID VALVE or MITRAL VALVE and to the last and thickest pumping chamber, the LEFT VENTRICLE. The left ventricle pumps the blood through the AORTIC SEMILUNAR VALVE which opens out to the AORTA.

And at last, it goes back to your body.

6 0

2 years ago

The idea that rocks from over long period through the slow geologic processes is called ___ ?

Salsk061 [2.6K]

Hello!

The answer to your question, "the idea that rocks form over a long period through the slow geologic processes is called ___", would be gradualism.

Hope this helps, and have a great day! :)

6 0

3 years ago

HELP WHICHEVER ONE IS RIGHT AND FIRST I WILL REWARD BRANLIEST

ss7ja [257]

The answer is the last one ( option D )

3 0

3 years ago

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Birds of a species have different sized and shaped beaks. What is this an example of? survival of fit individuals variation over

marysya [2.9K]

Answer:

I did this question for a science quiz and the answer is variation trust me I doubled checked on my quiz.