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m_a_m_a [10]
2 years ago
5

Which of the following is true about our body's system?

Biology
1 answer:
RideAnS [48]2 years ago
8 0

Answer:

D. The digestive system helps break down food into energy.

Explanation:

Hope this helps! I am 100% certain that this is the correct answer.

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List two main functions of the cell membrane
qaws [65]

Answer: heres the 3 main functions.

Explanation:

membranes have three primary functions 1) they keep toxic substances out of the cell 2) they contain receptors and channels that allow specific molecules, such as ions, nutrients, wastes, and metabolic products, that mediate cellular and extracellular activities to pass between organelles and between the cell and the outside environment and 3) they separate vital but incompatible metabolic processes conducted within organelles.

3 0
3 years ago
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What happen if amoeba spis place in sea water
Juli2301 [7.4K]

Answer:

If amoeba specie placed in the sea water, it will die because sea water contains excess of salts which adversely affect the growth of amoeba.

Explanation:

Amoeba is unicellular organisms i. e. made of a single cell. They are eukaryotic organisms i. e. having true nucleus. Amoeba is found in fresh water lakes and hot spring. Amoeba is not able to live in sea water because sea water contains salt which are not good for amoeba.

7 0
3 years ago
Lesch-Nyhan syndrome is an X-linked, recessive condition caused by mutation of the HPRT1 gene responsible for purine metabolism.
Elanso [62]

Answer:

B. The father did not contribute a sex chromosome to his daughter due to nondisjunction of the sex chromosomes. The daughter is XO and her only X chromosome came from her mother, who was a carrier.

A.The mother's X chromosomes failed to separate during meiosis, and the daughter inherited two X chromosomes with the Lesch-Nyhan mutation. The father contributed no sex chromosomes.

Explanation:

As seen in the question above, a little girl was diagnosed with Lesch-Nyhan syndrome, which is an X-linked recessive condition caused by a mutation in the HPRT1 gene responsible for purine metabolism.

The little girl's parents do not have the syndrome, and no one in the little girl's paternal family presented this syndrome, however, we know that the maternal grandfather of the little girl's mother had the syndrome, which means that it was the mother's genetic material that contributed to the development of the syndrome in the little girl. This was because the little girl did not receive any X chromosomes from her father, but she inherited the two X chromosomes from her mother that coded for the Lesch-Nyhan mutation. This happened because the mother's X chromosome disjuction did not occur during meiosis I.

As shown above, the father did not contribute any sex chromosomes to his daughter, which means that the daughter is XO and her only X chromosome came from her mother, who was a carrier.

3 0
3 years ago
Please Helppp!! Will mark as BRAINLIEST!! 50 POINTS
7nadin3 [17]

I believe the correct answer is Ww

This question was kind of difficult :/

4 0
3 years ago
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What molecule is the source of information for transcription.
Grace [21]

DNA is the molecule, which is the source of information for transcription.

• During the process of transcription, RNA polymerase is an enzyme, which is accountable for copying a sequence of DNA into a sequence of RNA.

• The RNA polymerase monitors the phenomenon of transcription.

• At the time of transcription, the information is stored within a molecule of DNA, which is further copied into a new molecule of messenger RNA.

Thus, the correct answer is DNA.

To know more about:

brainly.com/question/16512679

7 0
2 years ago
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