Rebekah is studying lichens growing on a cooled lava field. What is Rebekah most likely researching?

A. secondary succession
B. climax communities
C. pioneer species
D. disturbances

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.

Chalk is an ionic compound. which is a property of all ionic compounds that makes chalkboard? particularly useful for writing on a a high melting point hardness and brittleness inability to dissolve in water a multicolored appearance

Which of these statements are true about scientific theories and hypothesis