What occurs if a t cell binds to an antigen and the t cell does not receive a co-stimulatory signal? what occurs if a t cell binds to an antigen and the t cell does not receive a co-stimulatory signal? the t cell is activated. the t cell enters a state of anergy. the t cell becomes a memory cell. the t cell releases interleukins?

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-

In the water cycle , when does water undergo a chemical change

Agene editing technology called crispr-cas9 uses cellular machinery to change the cell's genetic material. how might this technology be useful in treating diseases like cancer?