Question 21 (2 points) The harvest of organisms is more likely to be sustainable if organisms are captured after they have had a chance to reproduce before they have had a chance to repróduce during the first year of their life while they are still in the egg or seed stages Question 22 (2 points) All of the wild species of the world represent a warehouse of genetic diversity of instrumental value commonly called a genome center a chromosome concentration. the genetic bank. the human genome project Question 23 (2 points) When freshwater inflows into estuaries are reduced, what result does not happen? populations of native species decline fresh water trout population increases salt water intrudes into the system exotic species of plants and invertebrates invade the estuary

**Question 21** 1. The key idea in sustainable harvesting is to allow the organism to reproduce at least once before capture. 2. Harvesting after reproduction ensures that the population can maintain its numbers. 3. Therefore, the correct answer is:   \( \text{after they have had a chance to reproduce} \). --- **Question 22** 1. Wild species of the world contain a vast amount of genetic diversity. 2. This diversity is often referred to as a reserve or storage of genetic information for future use. 3. The term commonly used in this context is:   \( \text{the genetic bank} \). --- **Question 23** 1. When freshwater inflow into estuaries is reduced: - Native species may decline because of changing salinity. - Saltwater intrudes more deeply into the system. - Exotic species can invade due to the altered environment. 2. However, a reduction in freshwater inflows would not lead to an increase in the freshwater trout population, as their habitat would deteriorate. 3. Therefore, the outcome that does not happen is:   \( \text{fresh water trout population increases} \).