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Deffense [45]
3 years ago
11

Cnidaria and flatworms exchange gases and remove wastes by way of their:

Biology
1 answer:
photoshop1234 [79]3 years ago
4 0
The answer is D, moist skin surfaces.

Explanation:
Cnidaria and flatworms respirate and extreme through their skin via diffusion.
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The vatican archives maintain a vault where century's worth of old documents are stored in very high n2 levels to prevent oxidat
Vinil7 [7]

The Vatican archives stores multiple precious documents and books of the world. These old documents dating hundred of years are kept in high nitrogen levels, in order to prevent the oxidation of the paper (papyrus). The presence of the high level of inert nitrogen in the air in the archives prevents any kind of damage that may caused to the paper or the ink on those documents. This high level of nitrogen, however, may affect the health of the individual by decreasing the oxygen levels in the body.

Hence, the answer is 'the oxygen level will be decreased in the body'.

7 0
3 years ago
What was the actual proportion of the basis for equal amounts of DNA
Stells [14]

Answer:

Equal amounts of DNA contain equal proportions of nitrogenous bases.

Explanation:

According to Chargaff's rule, the nitrogenous base pairs (Purines and pyrimidines) have an equal ratio (1:1) in the DNA of all the organisms. More precisely, the amount of adenine is equal to thymine and the amount of guanine is equal to cytosine in the DNA of all the organism. A-T base pair has two H-bonds while G-C base pair has three H-bonds.

7 0
3 years ago
Metformin has: select one:
Simora [160]
It’s c direct effect on the pancreas hoped that helped
5 0
3 years ago
Which individual are favored in natural selection?
Airida [17]

Hello! :)

It would take forever listing all the animals that have adaptations that helps them survive in their environment.

Natural selection is the process by which individuals with characteristics that are advantageous for reproduction in a specific environment leave more offspring in the next generation, thereby increasing the proportion of their genes in the population gene pool over time.

Hope this helped and I hope I answered in time!

Good luck!

~ Destiny ^_^

4 0
2 years ago
Which of the following statements about a catalyst is true?
Svetradugi [14.3K]

Answer:

14. A catalyst can be changed chemically during a reaction.

15. A catalyst can be changed during a reaction.

16. True

17. homogeneous catalyst

18. True

19. true

20. likely to rebound without reacting.

21. False

22. The temperature at which the reaction is carried out.

23. inhibitor

24. Don't know

25. True

Explanation:

3 0
3 years ago
Read 2 more answers
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