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uysha [10]
3 years ago
14

What happens when the organic matter of the fossil is replaced by stone

Biology
1 answer:
wolverine [178]3 years ago
3 0
Petrifaction happens jvgocg igcgicigcicg
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A student is investigating cellular transport. She fills a beaker with 250 ml of water. She places 10 drops of red food coloring
Vera_Pavlovna [14]

Answer:

The correct answer is A The student is investigating the passive transport of diffusion.

Explanation:

Diffusion is a type of transport process which helps in the transport of small molecules and gases towards their concentration gradient that"s means from region of high concentration to the low concentration region untill equilibrium is reached.

       In this question the 10 drops are red coloured food particles that are placed into the beaker, diffuses to all the regions of the beaker untill the concentration of that red colored food particle become same in all the regions to which red colored food particle diffuse.

6 0
4 years ago
I retract my original question, so instead;
Semenov [28]
<span>The scientist that did NOT contribute to the idea of natural selection is <span>none of the above. The answer is letter D. Both Charles Darwin and Alfred Russel Wallace contribute to the natural selection and are biologist. Darwin hypothesized  his theory of evolution while Wallace supplied Darwin with birds for study only to found out that both have the same hypothesis regarding natural selection.

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3 0
3 years ago
What genotypic ratio is expected in the offspring of this cross
djverab [1.8K]
The answer is B. 1:2
6 0
4 years ago
24 pts!
Ne4ueva [31]
The answer is B

Explanation: RNA is single stranded and contain uracil
6 0
3 years ago
Read 2 more answers
I NEED HELP ASAP!!! 99PTS!
zhannawk [14.2K]

Hey!

The correct answers for the blanks that I can answer (as a third-person answerer) are as follows:

*No, some collisions do not cause reactions due to a lack of energy or ability to properly collide.

*Speed

*A change in temperature of the bicarbonate reaction may lead to a quicker reaction with CO2-producing molecules.

I hope I helped!

Feel free to leave a comment down below if you need any more assistance or if I skipped any sections of the prompt. I will gladly help you with anything! :)

3 0
3 years ago
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