We are blood vessels that send blood back towards your heart. most of the blood we carry doesn't have much oxygen left in it. what is this?

Explain how the respiratory and circulatory systems interact.

If a single-celled organism is found to have a nucleus which contains its DNA and a phospholipid membrane, what else can safely be assumed about it?

Father of evolution

What are five corrective measuresyou would take to address such a situation of celebrities who feel that media infringes their right to dignity

What does dna and rna stand for

Using a pH meter, you find that egg whites have a pH of nearly 8 and egg yolks have a pH near 6, if litmus paper turns blue in bases and red in acids, which part of eggs would turn litmus paper blue? A. both B. egg whites C. egg yolks D. neither

With all his gear neil armstrong weigh 360 pounds on earth when he landed on the moon he weighs 60 pounds why

Is a lion is a carnivore?

The process in which nuclear division occurs

Which did Kepler notice about planetary motion that caused him to propose Kepler's first law of orbital motion?