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irina [24]
3 years ago
5

Cell structure responsible for excretion of cell waste

Biology
1 answer:
Scrat [10]3 years ago
4 0

Answer:

a

Explanation:

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How much does fast forward surgical teams get paid?
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The use of _____ during pregnancy is most associated with premature birth, low birth-weight infants, and fetal death. nicotine c
rusak2 [61]

The drug that is associated when having to intake it when pregnant that is likely causing premature birth, low birth weight infants and the fetal death is the use of nicotine. This type of drug is a form of agonist in regards with nicotinic acetylcholone receptors.

4 0
3 years ago
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After the three days, what happens in each test tube? why? what is necessary for rust to occur? how does this activity demonstra
Finger [1]
The situation would be that, in a sealed tube,  there are 3 to 4 nails inside and a certain amount of calcium chloride was added. After three days, there will be no changes to be observed in the first tube since the oxygen is not enough to initiate a change and there is no presence of water. For the second test, the same situation is made but boiling water was filled in the tube. For this, no changes would still be observed since there is no moisture. For the last test, the same situation as the first but it is filled halfway with water. After 3 days, rust would be observed on the nails. In order for rust to happen, there should be water and oxygen. The oxygen in the early atmosphere of the Earth would react with iron present in the oceans thus producing iron ores.
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4 years ago
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mylen [45]
The one with the the limestone thingy is faster  because the friction is loss  
my educational guess

6 0
3 years ago
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