Answer:
b
Explanation:
The answer is B becuase "where do people buy tools is not a scientific question, and neither is C.
Prokaryotic cells do not have membrane bound organelles. Eukaryotic cells do have membrane bound organelles. The membrane controls movement in and out of the cell. ... The cytoplasm fills the space between the nucleus and the cell membrane.
It's converted to ammonia.
Answer:
When providing antibiotics to cows, it provides unspecified chemicals that can range to many different issues. These chemicals can both affect the cow and its produce. Asserting the fact into yogurt, this antibiotic(dependant on its chemical) can affect the product within both positive and negative ways. If the chemical is positive, it can increase mass,taste and even quality. If it is negative, it can create a bad taste,bad quality and even transmit diseases!
The statement which best explains why carbon is present in so many kinds of molecules is because <u>it can form four covalent bonds.
<em /></u>It isn't rare on Earth, so A is incorrect. It has valence electrons, so C is incorrect. It cannot become an ion, so D is incorrect.<u>
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