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gizmo_the_mogwai [7]
3 years ago
12

Charles Darwin and Alfred Wallace first suggested: A. The idea that evolution might occur. B. A theory to explain how evolution

occurs within populations. C. Changes to an individual organism’s body, caused by changes in the environment, might be passed on to the organism's offspring. D. None of the above.
Biology
2 answers:
GREYUIT [131]3 years ago
7 0

Answer:

You watched the lab demo video and looked over the lab sheet.  You saw how the catalyst (MnO2) affected the rate of reaction as hydrogen peroxide (H2O2) broke down in to water (H2O) and oxygen gas (O2).

How did the catalyst affect the rate of reaction?

What was the evidence that the catalyst was having that affect?

Explanation:

Natasha2012 [34]3 years ago
4 0

Answer:

c

Explanation:

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quizlet i]n the heart, valves are located in the heart, valves are located just between the ventricles and the arteries. just be
ser-zykov [4K]

In the heart, the valves are located between atria and ventricles and between ventricles and arteries (option D).

<h3>What are valves in the heart?</h3>

Valves are membranous partitions which permit the passage of the contents of a vessel or cavity in one direction, but stop or control the flow in the opposite direction.

Valves in the heart enforce a one-way blood flow through the heart and separate atria from ventricles, and ventricles from the large arteries that leave them.

The four valves in the heart and their location is as follows:

  1. tricuspid valve: located between the right atrium and the right ventricle
  2. pulmonary valve: located between the right ventricle and the pulmonary artery
  3. mitral valve: located between the left atrium and the left ventricle
  4. aortic valve: located between the left ventricle and the aorta.

The valves between the atria and ventricles are called atrioventricular valves or cuspid valves while those at the bases of the large vessels leaving the ventricles are called semilunar valves.

Therefore, it can be said that the valves of the heart are located between atria and ventricles and between ventricles and arteries.

Learn more about valves of the heart at: brainly.com/question/28266922

#SPJ1

5 0
2 years ago
Which reproductive method is the only one available to mosses and ferns?
elena55 [62]

Answer:

Alternation of generation with both sexual and asexual

Explanation:

In mosses, the dominant plant is called a gametophyte while in ferm the dominant is sporophyte. Gametes are produced by the gametophyte and fertilization occurs forming an embryo. The embryo develops into a plant called the sporophyte.

4 0
3 years ago
50 POINTS
Contact [7]

Answer:

a & B

Explanation:

5 0
3 years ago
Read 2 more answers
What will stop if you drink too much alcohol
adell [148]

Your liver might stop. Hope this helps

4 0
3 years ago
Read 2 more answers
Newton’s 2nd law describes the relationship between Force &amp; Mass. It can be written that Force= mass multiplied by accelerat
Pavlova-9 [17]

Answer:

m = F / a

Explanation:

F = ma

F / a = m

m = F / a

it's simple bro

6 0
3 years ago
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