C. because stimuli is how your body responds to something, and in this case, someone's heart rate increases WHEN their blood oxygen drop. Do you see how it responds? ;-)
They would because they need that water for growing plants and some crops grow on water.
https://nerdfighteria.info/v/n7ndRwqJYDM/
There is a link that can answer your question better.
Hope that helps and feel free to ask me more questions :)Brainliest??
There is approx 4.7-5.5 liters of blood in his or her vascular system.
Answer: <u>Guanine
</u>
According to Chargaff's rule, the base pairing in the DNA and RNA is fixed. Adenine always pairs with Thymine in DNA and Uracil in RNA. Guanine pairs up with cytosine. This complementary base pairing is universal and constant. That's why amounts are also equal. It means if cytosine is 20% in any DNA sample, then amount of guanine would be 20% as well.