Which of the following is a biotic factor in an ecosystem?
sunlight,
water,
soil,
plants

Which statements are true of a scientific theory but not a hypothesis

How was the climate when the ambulocetus was alive

How is the national wildlife refuge system similar to the pacific region coastal program? a. both programs are concerned with providing habitats for wildlife b. both programs are primarily concerned with preserving fish species c. both programs have set aside 150 million acres of land d. both programs are under the u.s. fish and wildlife service