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andriy [413]
3 years ago
14

Which of the four basic substances on this ph scale is slightly basic?

Biology
1 answer:
djyliett [7]3 years ago
6 0

The answer is B. The human blood of a healthy person should range between 7.35 and 7.45. This is slightly basic since neutral pH is usually 7.0. Calcium hydroxide is too basic (could go up to pH 12), while whole milk ranges at pH 6.5 and lemon juice is approximately of pH 2.2.






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Water and the Earth 1:Question 3
Alenkasestr [34]

Answer:

Runoff

Explanation:

The other answers involve the water particles rising to the clouds. So those processes work against gravity and not with it. Runoff uses gravity to flow back into the ocean or large body’s of water.

4 0
3 years ago
Select the correct answer.
vampirchik [111]

Answer:

The answer is:

D.  A mutation causing uncontrolled cell division.

Uncontrolled cell division is very dangerous and harmful to an organism, it can cause diseases such as cancer. Hope that helps. :)

8 0
4 years ago
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Which statement is true about the appendicular skeleton of the human body? A. It consists of two groups, the bones along the mai
Olin [163]

The correct answer is : C, It consists of two groups, the bones along the main axis and the bones that connect the limbs to the axial skeleton!

6 0
3 years ago
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Which of these cancer drugs acts by adding hydrocarbon groups to dna? alkylating agents?
stich3 [128]
The propositions are:
a.alkylating agents
b.antimetabolites
c.topisomerase inhibitors
d.nucleoside analogs
e.<span>AZT

The right answer is A, 
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Antimetabolites are an anticancer drug but act differently than the alkylating agent. (interfere with folic acid)
Topoisomerase inhibitor acts by inhibiting isomerase, used in antibiotherapy (like quinolones).
Nucleoside analogs are analogs as their name says, it does not alkylate nucleotides.
AZT (</span><span>Zidovudine) is an antiretroviral drug that inhibits reverse transcriptase.</span>
3 0
3 years ago
These jars show the set-up from Francesco Redi's experiment with meat and maggots. After a few days of sitting out, the covered
Leni [432]

Answer:

Francesco Redi's experiment was the first experiment that disproved the theory of sponatenous generation. He explained that life cannot originate from the inorganic or non living matter.

He placed the two maggots in two different jars. The one jar is uncovered and contains meats in which maggots appear. The another jar is covered and no maggots appear on meat. This explains that maggots flies eggs are not formed in the covered jar as eggs are not available for the life. Maggots do not originate from the meat.Life originate from the pre existing life.

8 0
3 years ago
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