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Leni [432]
3 years ago
15

How to ensure validity in a investigation​

Biology
2 answers:
adell [148]3 years ago
8 0

Answer:

through the scientific method until reaching a conclusion

Allushta [10]3 years ago
4 0

Answer:

s ethrtzhzrt hj fxtj fxtExplanation:

jxft jxtfj

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naturally occurring inorganic solid that has definite chemical composition and an ordered internal structure.

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They will have to study fossils of an area where there were lots of dinosaurs were from

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What type of lenses were used for the first microscopes?
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Here is some background information...

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Leeuwenhoek (1633-1723) used melted glass balls to form lenses for apparently crude simple microscopes that nevertheless magnified up to 275 times! Modern tests have concluded that he could have achieved a resolution of two micrometres.

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Do both plant and animal cells have vacuoles ?
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