Deforestation occurs when large areas of trees are cut down. Which of the following impacts on the environment would result from deforestation? decreased erosion
decreased weathering
increased erosion
decreased weathering and erosion

Why do mutations in genes affect traits? o a. genes determine what type of mutagens an organism has. o b. genes produce proteins that cause traits. o c. genes affect how many chromosomes an organism has o d. genes code for carbohydrates that influence traits.

The breakdown of food is accomplished by enzymes. a. physical b. chemical c. mechanical d. none of the above

Freckles are a dominant trait in humans. both of the girls have the genotype ff for freckles. if either one marries a man with no freckles, what are the chances that their children will have freckles?