Keystone predators can maintain species diversity in a community if they a) competitively exclude other predators. b) prey on the community's dominant species. c) allow immigration of other predators.
d) reduce the number of disruptions in the community. e) prey only on the least abundant species in the community.

Plz quick a natural resource that is replaceable through a cycle in nature or sustainable practice is called a? the subject is science

Adescription of a type of bio biotechnology (genetic engineering, cloning, or artificial section) one benefit or one risk for the individual (based on whether you are for or against it) one benefit or one risk for society (based on whether you are for or against it) one benefit or one risk for the environment (based on whether you are for or against it)

Facilitated diffusion move large molecules and/or polar molecules across the cell membrane. what does facilitated diffusion use to do this?