What is the role of natural selection in evolution?

a. natural selection is a specific mechanism of evolution in which the heritable traits (characteristics) an organism to survive his generation.

b. natural selection is a specific mechanism of evolution in which the heritable traits (characteristics) an organism to survive and reproduce successfully.

c. natural selection is a specific mechanism of evolution in which all acquired traits (characteristics) an organism to survive and reproduce successfully.

Which of these is an example of land degradation? a. containers designed to store pollutants leak. b. fertilizers provide too many nutrients to crops. c. garbage is buried so the land can be reclaimed later. d. a drought kills all the plants in an area, leaving bare land

For the strategies below, decide whether they are best described as demand-side solutions or supply-side solutions to meeting human needs for fresh water. remember that a demand-side solution reduces demand for fresh water, whereas a supply-side solution increases the supply of fresh water. (a) damming a river to create a reservoir (b) desalinating seawater (c) a nation invading a neighboring country to access their rivers (d) raising water prices for consumers and businesses (e) providing tax breaks for companies that use less water (f) replacing inefficient irrigation with more-efficient drip irrigation to grow crops (g) requiring low-flow showerheads in all new homes

3test questions with answers on incomplete dominance