What is by far the leading cause of water pollution? select one: a. ocean-going shipping b. agriculture activities c. mining d. sewage treatment plants e. factories next?

Which term describes the number of waves that pass a given point in a given time? crest frequency trough wavelength

What are genotypes? what are phenotypes?

The finches on the galapagos island were similar in form except for variations of their beaks. darwin observed that these variations were useful for: attracting a mate defending territory building nests gathering food