Which of these is true of algae, bacteria, and flowering plants? a they are composed of cells. b they all have chlorophyll. c they all feed off other organisms. d they are inorganic.

Which statement best describes a keystone species? o a. it has littlelmenetic variation. it has an extremely high population. 0 b. 0 c. it remains unaffected by all environmental changes. od. it has a strong influence on the ecosystem. 0 e. it's the first species to populate a new ecosystem.

Lucia is walking barefoot in her yard. she accidentally steps on a nail. how will her nervous system work to generate a reaction? arrange the eventschronologically.

Which is one example of a phenotypic change that is not genetic