Which of the following is most likely the result of an organism having lipids in its body?
A. A walrus stays warm in the cold ocean.
B. A fish moves up the river to spawn.
C. A reptile slows down in colder temperature.
D. A chipmunk buries nuts for the winter.

really dont know just need some points

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).

1. what is the relationship between the shape of an enzyme and the reactions they catalyze?

2. how does an enzyme inhibitor work?

separate your answers so i dont get confused : )

they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.