7. The use by humans of one species to limit the population growth of another species is termed: (a) natural selection (b) biological control (c) cross-breeding (d) species interaction 8. An aquarium tank in a school laboratory contained mosquito larvae, algae, water snails, tilapia, pond weed, protozoa and water lily.
Which of the organisms in this aquarium form the producer population? (a) Algae, protozoa and pond weed. (b) Waterlily, pond weed and algae. (c) Mosquito larvae, water lily and tilapia. (d) Water snails, algae and protozoa
9. Which of the following natural resources is not renewable? (a) Fish (b) Water (c) Minerals (d) Trees

the question isn't complete here so i can't right an answer '_'

c should be the answer

the two answers are a, the population of birds with large beaks will increase on the island, and c, the trait for large beaks will be passed on to future generations through natural selection. the reason for that is because if the birds that have beaks developed for eating small seeds lose all of their food, they will go hungry and eventually starve because they physically cannot eat the large seeds, therefore making the population of large beaked birds higher. also, if the trait of large beaks are dominant on the island over small beaks, then over time the large beaked birds will reproduce more and more, while the smaller beaked birds will reproduce less and less because they can't survive with the food provided. that leads to the trait of small beaks disappearing and the trait of large beaks taking over the island.

b is the answer and if you need further with anything message me