Suppose that goldfish in the local pond live for 2 years. At the end of their first year they reproduce with a TFR of 4; in their second year they just swim around, and then die when the period is over. There are equal numbers of males and females at each goldfish age level. Indicate the total number of fish after 1 and 2 years under the following scenarios:
a) In the beginning there are 2 fish in their first year of life and none in their second year of life.
after 1 yr. _____ after 2 yrs. _____
b) In the beginning there are 10 fish in their second year of life and no fish in their first year of life.
after 1 yr. _____ after 2 yrs. _____

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The Answer of Suppose that goldfish in the local pond live for 2 years. At the end of their first year they reproduce with a TFR of 4; in their second year they just swim around, and then die when the period is over. There are equal numbers of males and females at each goldfish age level. Indicate the total number of fish after 1 and 2 years under the following scenarios:
a) In the beginning there are 2 fish in their first year of life and none in their second year of life.
after 1 yr. _____ after 2 yrs. _____
b) In the beginning there are 10 fish in their second year of life and no fish in their first year of life.
after 1 yr. _____ after 2 yrs. _____

Suppose That Goldfish in the Local Pond Live for 2