B) Oxygen may not have been able to accumulate in the atmosphere
Answer:
Skin cancer refers to the abnormal activity of skin cells associated with carcinogenesis
Explanation:
This disease is associated with the DNA damage (mutations) often caused by the irrational exposition to UV sun rays that trigger DNA mutations capable of both inactivating tumor suppresor genes and activating oncogenes
Answer:
E
Explanation:
I think bcuz arises as the result of total nondisjunction of chromosomes during mitosis or meiosi
Answer:
c.) develop foreign policy regarding the sustainable use of natural resources
Explanation:
Found on quizl
