This is common sense! Blood
D is the answer. have u gotten it from any other person?
Drive less, accelerate slowly, drive until your tank is empty, avoid excessive idling, eliminate wind resistance.
Answer:
Explanation:
Four conditions are needed for natural selection to occur: reproduction, heredity, variation in fitness or organisms, variation in individual characters among members of the population.
ORR
Struggle for existence, variation and inheritance. These are said to be the necessary and sufficient conditions for natural selection to occur.
