Choose all the answers that apply. which of the following are biotic factors in an ecosystem?
plants
animals
bacteria
sunlight
water

Darius is observing a family of geese, which includes a male goose, female goose, and several goslings. when a dog approaches the geese, the male goose hisses at the dog and flaps its wings threateningly. is the behavior of the male goose an example of an adaptation?

How does the study of genetic disorders such as pku biologists understand normal alleles?

Restriction enzymes are used in making recombinant dna. describe the role restriction enzymes perform when constructing recombinant dna.