Organisms are made up of organic molecules consisting of carbon, hydrogen, oxygen, nitrogen, sulfur, and
1. gold
2. potassium
3. phosphorous
4. copper

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.

Sort the examples by the type of diversity that they exhibit a park has 80 species of trees red, yellow, and orange bell peppers are all members of the same species individuals of the same lizard species have different mating strategies. five different bird species are at a bird feeder. genetic diversity species diversity

Which substance contains thylakoids? a) nadph b)atp c)stroma d)chloroplast