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Ulleksa [173]
3 years ago
14

Maria wants to enter the science fair at her school. She has a list of ideas for her project. Which questions could be answered

through scientific investigation? Check all that apply
Biology
1 answer:
Levart [38]3 years ago
6 0

Answer:

B:Does the rate of decay have an effect on the amount of gas produced? And

E:Which brand of stain remover is the best for getting out laundry stains?

Explanation:

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nydimaria [60]
D. Density increases is the correct answer!
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3 years ago
What prevents blood movement from left ventricle to left atrium​
irina1246 [14]

The Mitral valve which is also known as left atrioventricular prevents blood movement from left ventricle to left atrium.

Explanation:

  • Human heart is four chambered.
  • Two of these are receiving chambers known as atria and the other two are distributing chamber known as Ventricles.
  • Atria are superior chambers and ventricles are inferior chambers.
  • The heart has four valves broadly grouped as Atrioventricular valves and Semi lunar valves.
  • Atrioventricular valves allows flow of blood from atria to ventricle. These are tricuspid valve and bicuspid valve.
  • Semi-lunar valves allow blood to pass out of the heart. These include the pulmonary and aortic valves.
  • The pulmonary valve allows blood to flow from right ventricle  to the heart while aortic valve allows blood to flow from left ventricle to the Aorta.
  • The Tricuspid valve located between the right atrium and right ventricle allows blood to flow from right atrium to the right ventricle.
  • The Bicuspid valve ( Mitral valve)  located between the left atrium and left ventricle allows the blood flow from left atria to left ventricle.
  • Valves maintain the unidirectional flow of blood and thus prevent its back flow.
6 0
3 years ago
Environment determines the types of leaves that can grow in an area. Which type of leaf adaptations would you expect in a hot an
erastova [34]
Thin and spiral leaves, I would assume.

8 0
3 years ago
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According to the __________ perspective, personality is primarily determined by one’s genes. a. psychodynamic b. biological c. p
Reil [10]

The complete statement is "According to the biological perspective, personality is primarily determined by one’s genes" This is further explained below.

<h3>What are genes?</h3>

Generally, genes are simply defined as the biological fundamental unit of heredity that resides in a certain position on a chromosome.

In conclusion, biological personality is primarily determined by one’s genes.

Read more about Cells

brainly.com/question/2622341

3 0
2 years ago
When we saw plant cells placed in high concentrations of salt, what did you observe about the responses of the cell wall and the
Gnoma [55]

Explanation:

1.cell membrane far apart from the cell wall thats why the plant cells shrinked

3.cell walls are made of cellulose while cell membrane made of phospholipid.

4.water and nutrien cant enter by diffusion because the molecule is too big.

I HOPE THIS HELPS TELL ME IF IM WRONG ^^

6 0
3 years ago
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