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alexdok [17]
3 years ago
5

Which definition is the best for “semipermeable membrane”?

Biology
1 answer:
kirza4 [7]3 years ago
5 0

Answer:

Semipermeable membrane is a type of biological or synthetic, polymeric membrane that will allow certain molecules or ions to pass through it by osmosis—or occasionally by more specialized processes of facilitated diffusion, passive transport or active transport

Explanation:

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Help ASAP!!!! 20 points.
Lelechka [254]

Answer:

5= mRNA is “messenger” RNA. mRNA is synthesized in the nucleus using the nucleotide sequence of DNA as a template. This process requires nucleotide triphosphates as substrates and is catalyzed by the enzyme RNA polymerase II. The process of making mRNA from DNA is called transcription, and it occurs in the nucleus.

6 0
3 years ago
What type of keyboard can help prevent injuries from using the keyboard for long periods of time?
goblinko [34]
ERGONOMIC keyboards such as "Microsoft Natural Keyboard" can help prevent injuries from using the keyboard for long periods of time. Posture related injuries result from long use of laptops and computers. The ergonomic keyboards are easily adjustable by adjusting height in a particular angle. 
8 0
3 years ago
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In the F1 generation of a Mendelian cross,
Flura [38]
In the F<span>1 </span>generation of a Mendelian cross,
only the dominant trait is visible.only the recessive trait is visible.neither the dominant nor recessive trait is visible.<span>both the dominant and recessive traits are visible.

-I believe the correct answer is "ONLY THE DOMINANT TRAIT IS VISIBLE" in F1 generation, it is when the two true breeds, both homo (same genes) cross for example, HH and hh, since H will always be present in a punnet square, the answer is ONLY THE DOMINANT TRAIT IS VISIBLE. key word VISIBLE, the dominant trait is H</span>
7 0
3 years ago
Read 2 more answers
If the rice already had the genes that could make vitamin A, why did scientists use genes from other organisms?
meriva

Answer:

A. The rice genes didn't make the right type of vitamin A.

Explanation:

Regular white rice does not have the gene to produce beta carotene. The human body converts the beta carotene into vitamin A.

To increase the nutritional value of rice, the gene for beta carotene from daffodil flowers was inserted into the cells of endosperm of rice.

This allowed these cells of the genetically engineered rice varieties to produce beta carotene. Production of beta carotene imparted golden color to the rice grain and hence, the name.

7 0
3 years ago
What types of activity might decrease the battery life of a fully charged battery?
Andreas93 [3]
Activity like having brightness all the way on or depending on how much data is used, having Bluetooth on also decreases the battery, having a charger on even when over 100 percent can make charging electronic slower. It's better to have the brightness low.
5 0
3 years ago
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