Answer:
Mars could have life.
Explanation:
This is because it is at a temperature that could sustain life. Also, bacteria has been found from Mars.
The presence of the same fossils on different continents is evidence of continental drift.
The answer is fossils
Answer:
An embryo sac is said to form when the haploid megaspore nucleus divides. It possesses two haploid nuclei and six haploid cells which do not have cell walls.
Explanation:
Answer:
The answer is Physical. Physical immunity occurs when a person immune system responds to antigen.
Explanation:
