Consider that a species of salmon lays 20,000 eggs per pair when it spawns and dies. At the end of five years, an average of one pair of mature salmon from this group of hatched eggs returns again to spawn in the parent stream (19,998 have not survived). What is the growth rate of this population?

A. 20,000 - because there were that many eggs produced per parent fish (r2)
B. 10,000 - because there were that many eggs produced per parent fish (r)
C. None - because there is exact replacement of the previous generation
D. 2,000 - because this must be divided by five years
E. 2,000 - because there was this much average die-off per year


Answer: C

Biology & Microbiology

You might also like to view...

Gymnosperms, such as spruces, often dominate high-latitude boreal forests because ________

A. they are less susceptible to freezinginduced cavitation B. they have lower H2O requirements C. they have lower H2O transport capacity D. they generate large tensile forces

Biology & Microbiology

Cell walls of bacteria (domain Bacteria) usually consist of _____________, a network of polysaccharide molecules connected by polypeptide cross-links. 

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

Stephanie is infected with a pathogen. How might it be determined if the pathogen is a virus

or a bacterium?

a. A virus does not have genetic material such as DNA or RNA. b. A bacterium has ribosomes, but a virus does not. c. A virus does not have an outer covering or capsule. d. Bacteria are eukaryotes, and viruses are prokaryotes.

Biology & Microbiology

Which of the following statements about the sporophyte in brown algae is true?

a. It is diploid and gives rise to spores by meiosis. b. It is diploid and gives rise to spores by mitosis. c. It is haploid and gives rise to spores by meiosis. d. It is haploid and gives rise to spores by mitosis. e. It is triploid and gives rise to endosperm by mitosis.

Biology & Microbiology