the answer is A according to my knowledge.
Answer:
organisms have the amazing ability to make (produce) their own energy-rich food molecules from sunlight and simple chemicals.
Explanation:
Answer:
Homeostasis
Explanation:
Homeostasis- state of maintaining a stable internal enviornment despite changing external conditions
It will become a theory after repeated experimentation
-Crossing over occurs between prophase 1 and metaphase 1 and is the process where homologous chromosomes pair up with each other and exchange different segments of their genetic material to form recombinant chromosomes. It can also happen during mitotic division, which may result in loss of heterozygosity.