Some students take care a vegetable garden. When it is time to plant in the spring, the students leave part of the garden empty of vegetables in order to observe ecological succession. Which of these will most likely occur first? A. Development of a stream
B. Growth of weeds and grasses
C. Development of topsoil
D. Growth of trees and shrubs

Both destructive and constructive, the natural event seen here, is important in destroying and creating landforms on earth. what is this event called? a) deposition b) flooding c) landslide d) sedimentation

Explain three primary ways in which organisms depend on each other (symbiotic relationships)

Malthus studied limited resources and the impact of limited resources on human populations. how did these ideas contribute to darwin's ideas? a. limited resources in an environment means that the individuals of a species cooperate so that all individuals survive. b. limited resources in an environment forces some individuals to survive without food. c. limited resources in an environment means that not all individuals of a species will survive or reproduce at equal rates. d. limited resources in an environment forces more genetic changes in individuals, allowing the species to evolve more quickly.