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VikaD [51]
3 years ago
13

Smoking and lung cancer is it a correlation or causal

Biology
1 answer:
den301095 [7]3 years ago
4 0
Correlation..........
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How do the nephrons handle nitrogenous wastes such as urea uric acid and creatinine?
masya89 [10]
According to sources, the most probable answer to this query is that nephrons found in the kidney are responsible for filtering out waste in the blood cells. The resulting product is urea. 
This is then excreted to the body.

Thank you for your question. Please don't hesitate to ask in Brainly your queries. 
4 0
4 years ago
A fellow student in the class is looking at a slide of onion root tip cells and is excited that he can see the chromosomes under
marin [14]

Answer:

The correct answer should be the second option, that is, Onion root tip cells do not undergo anaphase 1.

Anaphase I is a part of meiosis which occurs only in cells involved in reproduction. For example, gametes.

Onion root tip  cells undergo mitosis.

The chromosome can be observed using compound microscope.

Thus, all other options are incorrect except second option.

4 0
3 years ago
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What are the main differences between the two ecosystems in terms of organism population?
12345 [234]
Ah ok! The difference would be the factors, they’re included in each level of organization!

Explanation:
First, let's review biotic and abiotic factors.

Biotic factors are living organisms, an example would be a deer.

Abiotic factors are non-living objects, an example would be the air.

Population - All the members of one species that live in a defined area.

Community - All the different species that live together in an area.

Ecosystem - All the living and non-living components of an area.

I hope this helped a bit ^^
6 0
3 years ago
DNA carries the instructions to make _____.
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They make new sells in your body.

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3 years ago
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Which of the following is the final fate of a very massive star? (3 points) a Large
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the answer is e. black hole



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