In a particular species of frogs, black spots are dominant trait in their absence is a recessive trait. In a population of frogs, 50 are homozygous for the dominant trait, 34 are heterozygous, And 16 show the recessive trait. Which expression is the correct way to calculate the frequency of the dominant allele?

Groups of organisms with low biotic potential, such as gray whales, that produce at most one offspring every other year a) are r-selected b) are k-selected c) are not subject to density-dependent limiting factors d) show the initial stages of the extinction process e) have escaped from the processes of natural selection and adaptation

Of the pollutants that form acids in the atmosphere, which is easiest to reduce? a. sulfur dioxide b. nitrogen dioxide c. ozone d. carbon monoxide

According to this food web which of the following would be considered primary consumers