Which of the following conditions is the most likely indicator of a population in an extinction vortex? a) the species in question is found only in small, stable pockets of its former range. b) the effective population size of the species falls below 1,000.c) genetic measurements indicate a loss of genetic variation over time. d) the population is permanently small.

C. Genetic measurements indicate a loss of genetic variation over time

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.

blue stars have the highest surface temp

stellar distances are usually expressed in light-years

the measure of a star's brightness is called magnitude

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