If a disease strikes the snake population in the food chain shown, what will be the initial effect on the populations of hawks and rabbits? a. the populations of hawks and rabbits will decrease. b. the populations of hawks and rabbits will increase. c. the population of hawks will increase. the population of rabbits will decrease. d. the population of hawks will decrease. the population of rabbits will increase.

The answer is D. The hawks will decrease because there is a limited amount of food for them to eat.

Option D

Explanation:

In case of a food chain, snakes eat rabbit and hawk eats snake.If a disease strikes the population of snakes then it is obvious that its population will decrease.

If the population of snakes will decrease then the population of rabbits will increase as there will be no more snakes to eat rabbits.

Along with this the population of hawks will decrease as there will be no food( snakes) for them to eat.

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.