They are the primary producers in many it's blank for each choose 1 option, its mulitiple choice
Choose...

a. trophic levels

b. food webs

c. food chains

d. ecological pyramids

that overlap to form a(n)

Choose...

a. food chain

b. trophic level

c. ecological pyramid

d. food web

Which plains area lies in both the united states and canada? altiplano central canadian shield coastal plains great plains

Which of the following is likely not involved in this example of ecological succession? a) the rotting remains of plants add to the fertility of the soil. b)the soil becomes so fertile that eel grass is replaced by other plant species. c) the roots from plants stabilize the sediment, keeping it in place. d) the concentration of salt becomes so high that all plant life is destroyed.

What could happen if two base pairs on a strand of dna or switched