What can the reader conclude about ecosystems based on the information in this passage? A. Ecosystems are always distinctly different and unique.
B. Ecosystems are interrelated with other ecosystems surrounding or including them.
C. Ecosystems are slow-developing entities of biological communities.
D. Ecosystems are clusters of communal habitats in an area.

Alice did an experiment to find the relationship between the angle at which a ray of light strikes a mirror and the angle at which the mirror reflects the light. she placed a ray box in front of a mirror. she changed the angle at which the light from the ray box struck the mirror and noted the corresponding angle at which the mirror reflected the light. which of the following is the dependent variable in this experiment? the mirror used to reflect the light the ray box used as the source of light angle at which the light from the ray box strikes the mirror angle at which the mirror reflects the light from the ray box

Which of the following substances is the most soluble in water? a. sodium chloride b. methane c. bromine d. carbon

A0.100-kilogram apple hangs in a tree 1.50 meter above the ground. ignore frictional effects, the total mechanical energy of the apples is