A mark-recapture program marked 10 individuals in the first catch. The second catch has a total of 8 individuals, 4 of which were recaptures. What is the estimate of total population size?

A. 22
B. 24
C. 42
D. 20
E. 40


D. 20

Biology & Microbiology

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Each of the following small molecules easily diffuses through the cell membrane EXCEPT ____

a. steroid hormones b. O2 c. H2O d. glucose e. CO2

Biology & Microbiology

Which of the following represents an example

of climate?

a. July 20, 1930 was the hottest day on record in Washington, DC b. April 14th, 1921 Silver Lake, Colorado received 1.7 meters of snow c. the rainfall in Seattle, Washington on July 4, 2010 was 2 centimeters d. the average summer temperature in Miami, Florida is 27 Celsius e. none of these are an example of climate

Biology & Microbiology

In which system are all three types of muscles involved in homeostasis?

a. respiratory b. digestive c. urinary d. reproductive e. cardiovascular

Biology & Microbiology

The gene associated with aggressive behavior in different studies is called _____________________. Fill in the blank(s) with the appropriate word(s)

Biology & Microbiology