Suppose That Goldfish in the Local Pond Live for 2

question 4

Short Answer

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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Definitions:

Depolarization

The process during the action potential when a cell's membrane potential becomes less negative, moving towards zero.

Aldosterone

A hormone produced by the adrenal glands that regulates blood pressure by controlling sodium and potassium levels in the body.

Antidiuretic Hormone

A hormone that helps to control the balance of water in the body by reducing the amount of urine made by the kidneys.

ADH

Antidiuretic hormone, a peptide hormone that helps regulate and balance the amount of water in the body by controlling water reabsorption in the kidneys.