Question

1. which of the following best describes natural selection? a. a random process that does not favor any traits b. the survival and reproduction of organisms with advantageous traits c. the process by which all traits are equally passed on d. the elimination of all mutations in a population 2. what is an example of a mathematical model in biology? a. a simulation of cellular processes b. a diagram of the food chain c. the lotka - volterra equations modelling predator - prey interactions d. a scale model of the human heart 3. what is a significant effect of pollution on soil quality? a. increase in soil fertility b. reduction in erosion rates c. enhanced soil drainage d. contamination affecting ecosystems and food production

Explanation:

1. Natural selection is the survival and reproduction of organisms with traits that give them an advantage in their environment. Option b correctly describes this.
2. The Lotka - Volterra equations are a mathematical model used to describe predator - prey interactions in biology. A simulation may use mathematical models but is not the model itself, a food - chain diagram is a visual representation not a mathematical model, and a scale model of the heart is a physical model.
3. Pollution typically contaminates soil, which can affect ecosystems and food production. It does not generally increase soil fertility, reduce erosion rates, or enhance soil drainage in a positive way.

Answer:

1. b. The survival and reproduction of organisms with advantageous traits
2. c. The Lotka - Volterra equations modelling predator - prey interactions
3. d. Contamination affecting ecosystems and food production