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miv72 [106K]
2 years ago
8

What are the advantages of sexual reproduction over asexual reproduction?

Biology
1 answer:
Lina20 [59]2 years ago
4 0
In sexual reproduction offspring is safe in the womb of mother,but in asexual they are vulnerable to predators

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miRNAs can control gene expression by what action?A. degrading proteins as soon as they are formedB. inhibiting the catalytic ac
levacccp [35]

Answer:

C) binding to mRNAs and degrading them or blocking their translation

Explanation:

<u>miRNAs:</u>

miRNAs is the abbreviation of MicroRNAs. These are the small noncoding RNAs of ∼22 nucleotides which can not code for peptides. miRNAs are responsible for gene expression regulation at the level of post transcription. They can do so by forming complementary base pairing with target mRNA and inhibiting their translation.

They silenced mRNA by the following processes:

(1) Cleavage of the mRNA strand into pieces,

(2) stopping mRNA from translation into proteins by ribosomes.

(3) Shortening of mRNA poly(A) tail and destabilizing it.

5 0
3 years ago
Please help with this
bogdanovich [222]

Answer:

Question 7:

C

Question 8:

C

Explanation:

Question 7:

If the pH number is smaller, the solution is more acidic. In turn, this means that it contains more H+ ions that OH- ions

Question 8:

A buffer is a solution that can resist pH change upon the addition of an acidic or basic components. It is able to neutralize small amounts of added acid or base, thus maintaining the pH of the solution

3 0
3 years ago
If the blood pressure in your brain is 120 mm when you are lying down, what would it be when you stand up? Assume that your brai
Mashutka [201]

Answer:

The correct answer is 88.84 mmHg.

Explanation:

The pressure differential between the brain and the heart while standing up will be 120 - rho × g (gravity) × h, here h is the distance from the brain to the heart. The h is 40 cm or 0.4 m.  

rho×g×h = 1060 kg/m³×9.8 m/s²×0.4m  

= 4155 Pa  

Now converting Pa to mmHg we get:  

4155 Pa × 760 mmHg / 1.01325 × 10⁵ Pa  

= 31.16 mmHg  

Thus, the pressure in the brain now is 120 - 31.16  

= 88.84 mmHg (hypotension)  

6 0
2 years ago
As filtrate passes through the long loop of Henle, salt is removed and concentrated in the interstitial fluid of the kidney medu
storchak [24]

Answer:

Nephron is the functional unit of kidney. The kidney contains around 4 to 5 million of nephrons in their structure. These nephrons helps in the blood filtration.

The loop of Henley passes down the filtrate for the production of urine. The excess salt is removed from the loop and deposited in the medullary part of the kidney. This is important as the nephron can now become hyperosmotic  medullary concentration and helps in the urine production.

7 0
3 years ago
15 POINTS PLS HELP ME HERE! THANK YOU!
NeX [460]

Answer:

the answer is B I think

Explanation:

because it gose from 2.9 to 3.7

4 0
2 years ago
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