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12345 [234]
3 years ago
10

Describe how the first organic molecules arose.

Biology
2 answers:
Naya [18.7K]3 years ago
4 0
Atoms combined to make molecules most likely through compound or ionic bonds
Nataly [62]3 years ago
3 0

Answer: due to chemical change/reaction, and combinations

Explanation:

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The condition pulmonary fibrosis is caused by the replacement of elastic fibers in the lung with inelastic collagen fibers, whic
JulsSmile [24]

Answer:

Pulmonary fibrosis is a disease that affects the lungs. The lung tissue becomes damaged and scarred which causes it to be thickened and stiff.

The condition pulmonary fibrosis is caused by the replacement of elastic fibers in the lung with inelastic collagen fibers. This decreases the lungs’ ability to stretch outwards.

Pulmonary fibrosis however mainly affects inspiration because the lungs cannot stretch to increase volume while during expiration stretching of the tissues doesn’t happen so it doesn’t affect the process.

4 0
3 years ago
Read 2 more answers
How do populations survive when the environment changes
Anna [14]

Answer:

i don't know if im right but honestly i could be A B or C

Explanation:

but i would say if its humans adapting to the environment and if an animal probably the same thing but maybe A more than C

8 0
3 years ago
determine the ratio of average maximum elongation rate for the modified RNA polymerase compared to the wild strain RNA polymeras
Vinil7 [7]

Answer:

Check the c in the explanation

Explanation:

a) RNA has three components - 1) 5 - carbon ribose sugar (2) phosphate group (3) nitrogen base

RNA polymerase is an enzyme involved in transcription where genetic material DNA is transcribed into RNA ( mRNA,rRNA,tRNA).

b) the dependent variable here is what we are looking in the experiment , here it is number of nuceotides per second ,the transcription efficiency of RNA polymerase. And the two controls are important wild type without drug and experimental strain without drug these two tells about baseline of transcription rate of an enzyme. so that one can explain the drug effect on a enzyme.

c) In both wild type and exp strain upon treatment with amanitin the transcription rate decreased in exp strain it is not significant whereas in wild type the effect is much higher compare to exp strain and it is significant. this suggests that the mutation in experimental strain must be on larger subunit of the RNA pol enzyme. that mutation might be showing effect of binding drug to the enzyme and also has a role for its enzyme activity.

and the reduction of transcription rate is 100% efficient in wild type compared with exp strain.

d) a null hypothesis is a general statement in a statistics where there is no measured phenomenon between groups.

the change in the amino acid is an important clue, tells that there is no effect in transcription rate between experiment strain with and without drug . which in turn tells that the mutation is imp for the activity of the Enzyme for its role.

Kindly check the attached image below

4 0
3 years ago
Which part of cell division is different and plant and animal cells
OlgaM077 [116]

Answer:

cytokinesis

Explanation:

The most important and observable difference in the plant animal cells mitosis is the cytokinesis.

5 0
3 years ago
How does cohesion and adhesion differ?
alisha [4.7K]
Cohesion is the property of like molecules to stick to each when they have a mutual attraction 

Adhesion is the property of different molecules or surfaces to stick to each other 

7 0
3 years ago
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