A(n) ________ is a type of polymer that helps in support, transport, and movement in the body
Fill in the blank(s) with correct word
protein
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The largest reservoir of carbon is ____
a. consumers b. nutrients in soil c. producers d. sedimentary rock e. water
Channels present in the membranes of some cells that allow rapid movement of water are called ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following is NOT true of ecosystems?
a. Although they may include many different species, many features of ecosystem structure and function are alike. b. Autotrophs secure energy and nutrients that are then used by heterotrophs. c. Energy cycles and minerals flow through ecosystems. d. Many different niches are represented in most ecosystems. e. Ecosystems are characterized by relatively few trophic levels.
Density-independent factors are abiotic.
Indicate whether the statement is true or false