In the biochemical assay lab, test tubes a and b were treated with onpg. after 15 minutes of incubation, test tube a turned a yellow color while test tube b remained a clear color. test tube contained which reacted with onpg to produce and . select one: a. b, b-galactosidase, lactose, na2co3 b. a, b-galactosidase, galactose, o-nitrophenol c. a, glucose, na2co3, lactose d. b, lactose, glucose, o-nitrophenol e. a, lactose, lactose, o-nitrophenol

Providing immunity by injecting the body with a weakened form a pathogen is known as

When does the circulatory system work with the respiratory system? a. during blood cell formation b. during cellular respiration c. during intestinal digestion d. during a viral infection

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-