HURRY PLZ

1 answer:

4 0

I think its A because a diploid human cell contains 23 pairs of homologous chromosomes and 2 sex chromosomes. The cell has two sets of each chromosome; one of the pair is derived from the mother and the other from the father.

You might be interested in

Mineral mining can destroy vegetation and cause soil erosion.<br> True or False

Kipish [7]

The answer is: Truee

6 0

3 years ago

Read 2 more answers

Which part of the eye acts as a secondary area of refraction to "fine tune" the focus? the iris the cornea the lens the retina

gogolik [260]

The part of the eye that acts as a secondary area of refraction to fine tune the focus is the lens. The lens of the eye is a biconvex, transparent structure of the eye that helps in refraction along with the cornea. Most of the refracting of the light rays happens in the cornea, but the lens help refract light to be focused on the retina by changing its shape to focus on objects at various distances.

5 0

3 years ago

Read 2 more answers

When you are preparing to look at a spoecimen always start with your microscope in?

enot [183]

4x, or the objective lens. Hope that helps you, my friend.

8 0

3 years ago

Effect of late night eating <br><br>

hichkok12 [17]

Answer: Eating late at night can lead to several health hazards like increase in blood sugar levels, heart diseases, obesity and acidity. Basically, the later you eat, the less your body is prepared to sleep, which can also have adverse effects on your memory and efficiency for the next day

6 0

3 years ago

The atomic number of argon is 18 and its mass number is 40. Describe the number and type of particles

Paul [167]

Answer:

Argon's atoms have 18 protons, 22 neutrons in its nucleus, orbited by 18 electrons- its atomic mass= P 18 +N 22.

Explanation:

Atoms are the most basic unit of matter that makes up elements. Atoms are composed of electrons orbiting neutrons and protons surrounding a nucleus.

The atomic number is defined as the number of protons in an atom, while the atomic mass is the number of protons and neutrons.

The element Argon, Ar is a noble gas, that exists in a gaseous, inert, state at temperature. Its atoms have 18 protons, 22 neutrons in its nucleus, orbited by 18 electrons- its atomic mass= P 18 +N 22.

There are 8 valence electrons in its outer shell, thus:

Ar is not very reactive, as it does not require electron sharing in atomic bonding.
It shows low conductivity, as there are no free electrons

7 0

3 years ago