Which of the following is true ? 1. all populations in an ecosystem form the community. 2. a habitat represents all the biotic factors in an ecosystem. 3. the amount of nutrients in soil is an example of a biotic factor. 4. only one population can live in a habitat at a time

What evidence did mendel find that supported his law of independent assortment? a. dominant traits are expressed when there is a dominant allele. b. traits do not affect the inheritance of other traits. c. some traits have three or four different alleles. d. plants and animals can both reproduce sexually.

What part of the brain is highlighted in the diagram below?

Which statement is true for bacteria a. bacteria have complex internal structures b. all bacteria are spiral in shape c. all bacteria cause disease in animals d. bacteria break down some foods