The weaver birds from the african savanna exhibit a trade-off between risking starvation and being hunted by predators. as a result the birds that are of medium weight have the selective advantage and make up the majority of the population. which type of natural selection is at work here?

Cells destroy body cells infected by a virus or bacteria.

Your two friends just told you what to order for them at the drive through fast food restaurant. you give the order but when the food comes about 10 minutes later, you don't remember what each of your friends ordered your memory of the order was in __ memory. a. semantic b. flashbulb c. long-term d. short-term i think i know but i'm not really sure

How did alexander fleming’s research solve a societal problem? he developed ways to treat inherited diseases. he advocated for regular hand washing to kill germs. he discovered a new type of medicine that could treat infections. he discovered the cause of mad cow disease, an emerging disease.