Adaptive defenses require us to use what molecules that can identify whether a cell is a self or nonself cell?

Invasive species are one of the major threats to biodiversity. these species multiply quickly and compete with native species for food, sunlight, spac and other resources. on the map, determine the area where native species will have limited resources available to them due to invasion threat from invasive species threat very low low medium high very high

If a strand of dna has 35% thymine. what is the percentage of cytosine, adenine, guanine?

What substance is the most acidic. lemon juice. tomato juice. sodium hydroxide. water