Lungs appear collapsed in the fetus because they are filled with amniotic fluid and they have never been inflated with air yet.
true
Explanation:
they are called that just cause
The photosystem
This unit absorbs light energy for photosynthesis.
Diploid refers to a cell that has two copies of each chromosome. One way that a diploid organism could have an offspring that are 3n (triploid) or 4n is when the chromosomes don't separate during meiosis.
Triploid refers to some cell that have 3 copies of each chromosomes for a total of 69 chromosomes.