Explore how a Bengal tiger will adapt using artificial selection, natural selection, traits, alleles, fitness, selective pressures, mutations

Natural and sexual selection both lead to evolution, but these processes can work against each other. Differentiate between these two forms of selection and give an example of a situation where natural selection reduces mate choice and sexual selection reduces survival.

Which of the following scenarios is an example of directional selection? A population of Sharks is evolving towards the average body size; small sharks fall prey to killer whales, large sharks can't get enough food A population of daisies is evolving away from pink individuals and towards white and red individuals. Pink flowers blend in whereas white or red can more easily be spotted by bees A population of snakes is evolving to become browner since lighter colored snakes are more easily spotted by predators

Evolution determines the change in inherited traits over time to ensure survival. There are three variants identified as Variant 1 with high reproductive rate, eats fruits and seeds; Variant 2, thick fur, produces toxins; and Variant 3 with thick fur, fast and resistant to disease. These variants are found in a cool, wet, and soil environment. In time 0 years with cool and wet environment, the population is 50,000 with 10,000 Variant 1, 15,000 Variant 2, and 25,000 of Variant 3. Two thousand years past, the environment remained the same with constant average temperature and rainfall. Variant 1 with a population of 26,000, Variant 2, 35,000, and Variant 3, 62,000. A disease spread throughout the population. However the population increased to 72,000. Determine the percentage increase in the population of the variants.