How does the current, or sixth, mass extinction differ from the past five mass extinction events? a. the sixth mass extinction is believed to be caused by human-related factors. b. the sixth mass extinction is believed to be caused by natural forces. c. the sixth mass extinction is believed to affect relatively fewer species. d. the sixth mass extinction is believed to affect relatively fewer areas.

The meselson-stahl experiment demonstrated that dna replication is semiconservative. in the figure, semiconservative replication is illustrated by

Why do carbohydrate molecules function so well as fuel for the body?

Scenario #2 in 2001, a population of 2,500 poison dart frogs lived in the amazon rain forest. due to increased deforestation, the population dwindled to 25 frogs in 2019. new government regulations were enacted in 2022, successfully putting an end to the deforestation of the amazon rain forest. once deforestation was stopped, the poison dart frog population was able to recover. by 2050, the population reached 8,000 frogs, of that population, 20 are homozygous recessive for being spotted (ss genotype). q2- ? q- p- p2- 2pq-