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Liula [17]
4 years ago
15

What is a test cross?

Biology
1 answer:
Scilla [17]4 years ago
5 0
<span> A </span>test cross<span>, involves the breeding of an individual with a phenotypically recessive individual.

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Which structure fuses to form a diploid zygote during sexual reproduction?
bagirrra123 [75]

Answer:

Meiosis is where a diploid cell gives rise to haploid cells, and fertilization is where two haploid cells (gametes) fuse to form a diploid zygote.

Explanation:

i looked it up

7 0
3 years ago
Which optical phenomena are formed by water droplets?
maw [93]
One of the most common and well known atmospheric optics, the rainbow is formed when sunlight is refracted and reflected by water. A collection of droplets in the atmosphere — whether from rain, a waterfall, a sprinkler, etc. — disperses the entire visible light spectrum at an angle, resulting in the circular shape.
7 0
3 years ago
When the charge inside the cell returns to the resting potential following depolarization, it is called:
scZoUnD [109]

Answer:

Repolarization

Explanation:

Repolarization refers to the phase during which the resting potential is restored after depolarization. This means that the inside of the axon membrane becomes negative again compared to the outside.

Repolarization is obtained by the functioning of K+ ion channels. The opening of K+ ion channels allows the K+ to move outside of the axon. Movement of positively charged ion (K+) outside of axon makes the inside negative again and the resting potential is restored.

5 0
3 years ago
The 1st Law of Thermodynamics states that energy is neither created nor destroyed only transfer to forms. Why is a food chain an
belka [17]

Answer:

Food chain is an excellent example of the first law of thermodynamics.

Explanation:

First law of thermodynamics states that energy of the universe is constant. It is always found in the universe in some form or the other. It cannot be destroyed or totally used up and we cannot also create energy out of anything in this world. Energy transforms from one form to another form.

Food chain is considered to be an excellent example of 1st law of thermodynamics. Every living organisms in the world posses energy. And all living organisms consumed each other or eat each other for their survival and consumes these energy to survive. So the energy possessed in one organisms or animal is transferred to the other organism that is higher in the food chain when they eats the lower organisms or animal in the food chain.

Thus energy transfers form one form to another.

3 0
3 years ago
Enzymes are composted of CHON <br> True<br> False
borishaifa [10]

Answer: True

Explanation:

8 0
3 years ago
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