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Evgesh-ka [11]
3 years ago
10

We know that the atmosphere became more oxygen rich around 1.8 ga because of geologic evidence such as:

Biology
1 answer:
qwelly [4]3 years ago
7 0
The answer is: banded iron formations,
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Help me please ASAP <br> Earth and space btw
Alexus [3.1K]

Answer: I think it’s waves

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5 0
2 years ago
Do organisms always stay in the same level
mel-nik [20]
No they don't

For example humans. Technically humans are place below a wild predators such as sharks in trophic levels.

But the fact is we can eat sharks. So , organisms don't always stay in the same level
3 0
3 years ago
How does passing through clay beds affect groundwater?
Paladinen [302]

Answer:

Passing through clay beds filters groundwater, purifying out soil,  or organic materials, and contaminants to leave behind pure water that fills up aquifers.

Explanation:

I hope this help you .

5 0
3 years ago
iruses, not bacteria, cause cold and flu. However, some people demand antibiotics from their doctors to help control the symptom
madreJ [45]

Answer:

i think that if you use antibiotics your body wouldn't get exposed to the bacteria as much as if you got sick, making your body more dependent on the meds because your body hasn't produced the antibody's against the bacteria

Explanation:

8 0
3 years ago
Why do animal cells have many small vacuoles and plant cells have 1 or 2 large vacuoles?
valina [46]
The plant cells vacuole is larger compared to the animals cells' because the plants vacuoles takes up 90% of the cells volumes. Vacuole stores food for the organism. In this case since, plants manufacture their own food, it is necessary for it to have a large storage space or a large vacuole.



3 0
3 years ago
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