Bees play a central role in the health of terrestrial ecosystems because they are vital to the pollination of plants. The extinction of bees could cause the collapse of plant-
based terrestrial (land) ecosystems. Based on this description, bees can best be
described as a

A. native species
B. foundation species
C. keystone species
D. specialist species

Me with these questions if you’re it sure don’t answer

Put the following steps of the convection process in the correct order. 1. gravity pulls cooler matter downward. 2. the matter expands and decreases in density. 3. an up-and-down flow of matter produces a convection current. 4. matter is heated. 5. warmed matter is forced upward. question 2 options: a) 4, 2, 5, 1, 3 b) 2, 4, 3, 1, 5 c) 3, 2, 5, 4, 1 d) 1, 4, 2, 5, 3

Plants that have reproductive structures called cones are?