#Question id: 12447
#Section 1: Ecology
#Question id: 3338
#Section 2: Evolution
If the expected frequency of heterozygotes in a population (based on the Hardy–Weinberg law) is 0.4, but the observed frequency is 0.2, what is the inbreeding coefficient?
#Question id: 4647
#Section 2: Evolution
The treeʹs horizontal axis is a timeline that extends from 100,000 years ago to the present; the vertical axis represents nothing in particular. The labeled branch points on the tree (V—Z) represent various common ancestors. Letʹs say that only since 50,000 years ago has there been enough variation between the lineages depicted here to separate them into distinct species, and only the tips of the lineages on this tree represent distinct species. Which of the five common ancestors, labeled V—Z, has been most successful in terms of the percent of its derived species that are extant?
#Question id: 11651
#Section 1: Ecology
Succession on a newly exposed site that was not previously occupied by soil and vegetation refers to
#Question id: 10742
#Section 1: Ecology
Interior species