Plz answer aspa which of the following is an example of natural selection? explain why. a. cricket frogs prefer to sleep during the day, while red-eyed tree frogs prefer to sleep during the night. b. rabbits with a mutation for longer, thicker fur survive an unusually cold winter, while many normal rabbits do not survive. c. to produce a more desirable fruit, a farmer crosses a tree that produces sweet oranges with a tree that produces large organges. d. pesticides are sprayed in a field, resulting in an increase in crop growth and a decrease in insect population.

What was dr. willem johan kolff’s first step in using the scientific process to invent the hemodialysis machine? he built the machine and tried it with various patients, collecting data about its effectiveness. when a patient’s kidneys failed, he wondered if it would be possible to perform kidney functions with an external machine. he researched and collected data about numerous patients who exhibited symptoms of kidney failure. he drew conclusions from studies of various symptoms of kidney failure, and drew a design for the ideal external blood-processing machine.

How does natural selection change thephenotypes within a population over time?

What would happen if the krill were removed from the food web