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masha68 [24]
4 years ago
9

choose one! What action destroys topsoil 1)mowing land 2)adding nutrients to soil 3)plowing land without replantation 4)sowing s

eeds in land
Biology
2 answers:
11Alexandr11 [23.1K]4 years ago
7 0

Answer:

2 is the answer.

Explanation:

Mandarinka [93]4 years ago
3 0

Answer: Its C not B

Explanation:

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What does the chemiosmotic process in chloroplasts involve?
Papessa [141]

<span>proton gradient</span> establishment

Chemiosmosis is the process that allows the diffusion of a molecule or an atom through the membrane. Also, it is the movement of ions across semipermeable membrane down their electrochemical gradients. In chloroplast, chemiosmotic coupling is an important factor in ATP production through proton gradient establishment.

5 0
3 years ago
How has gene duplication played a critical role in evolution? see concept 21.5 (page)
Angelina_Jolie [31]

Answer:

Explanation: Without gene duplication, mutation of genes would not exist. This would prevent organisms from adapting to their environment, making survival much more difficult if not impossible.

8 0
2 years ago
A loopful of bacteria containing 1000 bacterial cells is inoculated into a nutrient broth and incubated. After a negligible lag
Black_prince [1.1K]

Answer:

<h2>a.  1000 X 2^8</h2>

Explanation:

As given;

Initial population of bacteria= 1000;

Log phase growth is exponential phase, period in which bacteria gets double.

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it means, bacteria get double in every 15 minute,

so after 2 hours, bacteria will have 8 generation times;

so the final generation of bacteria is =1000 X 2^8.

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5 0
3 years ago
During MEIOSIS, an event called crossing over occurs. Explain what happens during this event.​
RoseWind [281]

Answer:

During meiosis, an event known as chromosomal crossing over sometimes occurs as a part of recombination. In this process, a region of one chromosome is exchanged for a region of another chromosome, thereby producing unique chromosomal combinations that further divide into haploid daughter cells.

3 0
3 years ago
Explain how the data supports your hypothesis.
Viktor [21]

Answer: It is verified by testing it. If the data supports the hypothesis, then we consider the hypothesis to be verified and true. If however, the data does not support the hypothesis or refutes it, then the hypothesis is in trouble, and we have to come up with a different hypothesis to explain the observations.

Explanation:

5 0
3 years ago
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