Answer:
meiosis
Explanation:
The crossing over of homologous chromosomes occurs in meiosis. Meiosis is characterized by the lining up of homologous chromosomes close together to form a structure known as a tetrad.
"Contains many young stars".
False
Can you same the same thing about organisms and aquatic animals, not every single living thing has an heart to survive.
D
Answer: A, I think....