The builder can he fix it
Answer:
Physical digestion prepares the food for chemical digestion.
Answer:
Can destroy habitats and food supply
Explanation:
<span>Genetic variation can be caused by mutation (which can
create entirely new alleles in a population), random mating, random
fertilization, and recombination between homologous chromosomes during
meiosis (which reshuffles alleles within an organism's offspring)</span>
