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vodka [1.7K]
3 years ago
11

What is the purpose of completing three trials?

Biology
1 answer:
maxonik [38]3 years ago
7 0
The answer is C because if a doctor only tested new medication on one person then gave it to many other people with the same disease there might have been a mistake and could kill people
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Ilia_Sergeevich [38]

Answer: where is the graph

Explanation:

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3 years ago
One major difference between plant and animal cells is that plant cells are the only ones with
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They are the only cells with chloroplast 
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Which of the following is a true statement? a. Mammals were the prominent species just before the extinction of dinosaurs. b. Ma
Angelina_Jolie [31]

Answer:

The correct answer is B.

Explanation:

Option A is wrong. Mammals were not the prominent species before the extinction of dinosaurs because the mammal species that lived during the dinosaurs' era were so small that they only weighed several grams and occupied small areas as their habitats.

Option C is wrong. As dinosaurs became extinct, reptiles and "birds" remained as their descendant which evolved to some of the species that we know today.

Option D is wrong. Pangea started to break up to form the geographic isolation for the diversion of many species around 175 million years ago.

So the correct answer is B. Massive extinction disrupts and changes the food chain in such a big way that it triggers a domino effect that leads to species adapting to their new environment and diversifying thus forming new species in the process.

I hope this answer helps.

5 0
3 years ago
Which of the following is considered a mutagen? A- DNA polymerase B- red meat C- UV light D- All of the above are correct.
rusak2 [61]
The correct answer is C. UV light.
5 0
3 years ago
Give a SHORT but LOGICAL answer please.
Zepler [3.9K]

Answer:

the candle will go out

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since without oxygen it can't burn in a closed environment the oxygen will either be to low or not even present

8 0
2 years ago
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