I would have to say Auroras. they occur when the suns particles get charged by the earths atmosphere
Answer:
Answer is Option D - XY.
Explanation:
A typical human diploid cell contains 46 chromosomes, or 23 pairs: Two of the 46 are the sex chromosomes that determine an individual's sex: XX = female and XY = male.
Proteins that tag pathogens for destruction by immune cells are called Antigens.
Answer:
Both are a form of reproduction
Explanation:
answer choices??