Dead leaves are:
a. detritivores
b. autotrophs
c. detritus
d. saprobes

Which of the following statements is true? a. the main cause for speciation is an increase in gene flow. b. organisms that reproduce asexually are not considered part of a species. c. on a tree of life diagram, speciation is shown by the merging of two different lineages. d. the size of the geographic area inhabited by a population can cause speciation.

At which location in earth’s interior does the top density continue to increase as thickness decreases?

Question#29: why does the tropical ocean have a greater temperature range than the temperate ocean?