Answer:
D
Explanation:
because air is made up of nitrogen,carbon dioxide, Argon and oxygen
Answer: Down syndrome and cystic fibrosis
Prediction! hypothesis consists of very little evidence. kind of like a guess
A. they have a higher proportion of adenine–thymine than guanine–cytosine base pairs.
The option A represents the complete opposite of "high-gc gram-positive bacteria". High GC content means that this bacteria have more guanine ans more cytosine than the other base pairs- adenine–thymine. This means all the other options are correct.
I believe it's oxygenated or oxygen rich blood away from the heart.
