One year, heavy rain makes lake raymond very deep. the next year, however, rain is very light, and not much water is left in lake raymond. how will this most likely affect animal life in lake raymond? a. there will be an increase in bacterial life the second year. b. there will be more animal life the second year. c. there will be several new species of fish the second year. d. there will be less animal life the second year.

Option D, There will be less animal life the second year.

Explanation:

Lake is an ecosystem which predominantly consist of plant and animal species which are able to survive and grow in water.  

During the first year heavy rain had increased the depth of  Raymond lake and this caused more plant and animal species to grow/regrow and survive.  

While the same species faces problem when the water level in the Raymond lake decreases as there is no rain second year. The most badly affected are the species that lives at greater depth of the lake which was least exposed to sunlight or any other external environmental factor. But due to receding water level, even the species living at greater depths get affected.  

Thus, option D is the most appropriate 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.