What determines the carrying capacity in an ecosystem? * A:The number of different species in an ecosystem
B:limiting factors
C;:only biotic factors
D:only abiotic factors

Which of the following is a common danger of commercial fishing?

The similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between organisms in both locations?

Select the correct answer. which mutation is harmful to the organism? a. a mutation allowing moths to camouflage better on blackened tree bark b. a mutation making staphylococcus aureus resistant to the antibiotic methicillin c. a mutation inhibiting human immunodeficiency virus from attaching to and entering the cell d. a mutation causing uncontrolled cell division e. a mutation giving plant leaves a bitter taste to discourage herbivores from eating them