Respuesta :
1,3,5 and also 6 because the organisms can't just mutate on the spot, it takes time and lots of offsprings
Answer:
All organisms must compete for survival.
Natural selection continues to occur even today.
When organisms struggle to survive, they usually mutate to increase chances of
reproduction
A decrease in food availability will increase the variation in a population
Explanation:
According to Charles Darwin in his theory of natural selection, organisms must compete for scarce resources. Only the fittest can survive. The fittest are organisms that have undergone the required genetic changes that increases their chances of survival. They pass on these genetic changes to the next generation or offspring.
When availability of food decreases, organisms begin to change genetically as they struggle for scarce resources thereby leading to variation in a population.