<span>the study of living organisms, divided into many specialized
fields that cover their morphology, physiology, anatomy, behavior,
origin, and distribution.</span>
Diffusion because it requires no energy
I think sperm is the answer
Answer: <u>Capillaries
</u>
Explanation: There are two kinds of vessels which carry the blood throughout the body. These are veins and arteries. Now apart from these two, there is a third type which is called as capillaries, which are the connecting vessels between arteries and veins. These are relatively thinner and allow exchange of gases between tissues and the blood. Therefore, arteries and veins are incorrect options.
Heart is the pumping organ, and its function is to pump the blood to every cell of the body, so this can't be correct option.
The answer has to be C. karyotyping
If it is correct please give brainest if not I will fix it.
This is the image it came up with when I was searching for karyotyping.