Why are nutrients from fertilizer harmful to aquatic ecosystems? a. they cause an increase in fish populations. b. the increase in algae population reduces oxygen in the water. c. they can infect plants, which causes animals and humans to become sick. d. fish and other organisms grow too large and can no longer live in the ecosystem.

Which is an example of a population?

18. which statement about cancer is true?

Answers to mastering biology drag the labels to their appropriate locations to complete the punnett squares for morgan's reciprocal cross. drag blue labels onto the blue targets to indicate the genotypes of the parents and offspring. drag pink labels onto the pink targets to indicate the genetic makeup of the gametes (sperm and egg). labels can be used once, more than once, or not at all. hints