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Fantom [35]
3 years ago
11

Why does the land around a once active coal mine remain barren?

Biology
1 answer:
Temka [501]3 years ago
8 0

Hello!!

The answer is A. Toxic nitrous oxides were releassed into the soil killing all plants

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Visual Check
aksik [14]

Answer:

They should all have purple flowers.

Explanation:

This is because plants use the reproduction called mitosis, which means that the child will be a direct copy of the parent.

Hope this helps! :)

8 0
3 years ago
Which of the following best describes the function of DNA within a cell
d1i1m1o1n [39]

Answer:

is the blue print of the cell

Explanation:

it contains all of the genetic code to make the cell into it's functioning part

3 0
3 years ago
Read 2 more answers
The toxic cyanide anion (CN-) binds to cytochrome c oxidase and prevents electron transfer. Dosing of BP-CML cells with cyanide
astra-53 [7]

Answer: C. Ii & III are correct

II. reduced intracellular ATP.

III. apoptosis or necrosis.

Explanation:

Cytochrome c oxidase controls the last step of food oxidation. Cytochrome c oxidase is an enzyme responsible for electron transfer in the electron transport chain (ETC), it inhibit in slowing down or stopping the ETC.

Consequently, ATP production would be gradually reduced, as the ETC is responsible for the majority of ATP production. This shows option II is correct.

The question starts by stating that cyanide is highly toxic, so this match up with the fact that a large dose would also cause cell death (apoptosis or necrosis). Therefore, option III is also accurate.

Option I: Inhibiting the ETC is consequential as it reduces oxygen demand because electrons would not flow to oxygen, the final electron acceptor.

3 0
3 years ago
Refer to this portion of a dichotomous key for fish identification to answer the question. 1. (a) Has a single dorsal fin ® 5 (b
leonid [27]

Answer: Step 7

Question: Refer to this portion of a dichotomous key for fish identification to answer the question. 1. (a) Has a single dorsal fin ® 5 (b) Has a double dorsal fin ® 2 5. (a) Has small fin on back near tail ® 6 (b) Has no fin on back near tail ® 7 6. (a) Has barbs near the mouth ® Catfish (b) Does not have barbs near the mouth ® 10 What is the next step to complete to identify a fish that has a single dorsal fin, no fin on the back near the tail, and no barbs near the mouth? step 2 step 5 step 7 step 10

6 0
3 years ago
Read 2 more answers
What happens when muscle cell don't have enough oxygen?
RoseWind [281]
It begins producing acids and converting glucose instead of energy and the anaerobic exercise takes over then the power output drops and fatigue is getting in
7 0
3 years ago
Read 2 more answers
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