BIOLOGY HIGH SCHOOL

In their experiment to form a primitive living cell, Urey and Miller set up various flasks with water vapor and the gases CO2, CH4, and H2. One flask also had electrodes to generate spark; another flask had electrodes to generate spark; another flask had everything but electrodes. Which of the flasks showed presence of coacervates, and why?A: only the flask with the electrodes because the electrodes were a source of electricity that simulated lighting.
B: only the flask without electrodes because the electricity generated from electrodes would have destroyed the coacervates.

Answers

Answer 1
Answer: The correct answer should be A.only the flask with the electrodes because the electrodes were a source of electricity that simulated lighting.

According to their experiment, only the flask with the electrodes could show presence of coacervates because it needed an energy source in order to fully simulate earth's early atmosphere.
Answer 2
Answer:

Answer:

The answer is a

Explanation:

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WHAT ARE CHROMOSOMES
A hypothesis must be

Which TWO phrases describe the contents of a chromosome? A. A single gene
B. Many genes
C. Many DNA molecules
D. A single DNA molecule

Answers

Answer:

D&B

Explanation:

Each chromosome contains a single double-stranded piece of DNA

one chromosome contains thousands of genes

Answer:

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B. wind
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F. squall lines

Answers

lighting , hail , tornadoes .

Answer: All except for E

Explanation:  I hope this helps!

Approximately twenty-five elements _____.

Answers

Approximately twenty-five elements occur naturally on earth. Remaining elements either have to be synthesized or obtained through chemical reactions.

Answer:

occur naturally on earth .

Explanation:

What are some reasons that humans need to be concerned with our environment? explain.

Answers

we need to be concerned with our enviroment beacuse we need to  take care  of were we live  like picking up trash and not havng that much polution and to plant more trees because they help  us breath  by giving us oxygen 
because we need to be able to stay on the earth long
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The movement of aimno acids is facilitated by dash​

Answers

Answer:

Blood

Explanation:

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Which of these does NOT contain a structural protein?a. ligamentsb. ovalbuminc. tendonsd. musclese. spider silk

Answers

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Hope this helps.
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