Ecologically mud flat areas are a focal area of:
a. nutrient recycling.
b. primary production.
c. tertiary consumers.
d. nutrient sink.
e. sessile epifauna.
A
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In what discipline did Darwin get his degree
from Cambridge University?
a. biology b. geology c. theology d. genetics e. biogeography
According to cell theory, ____
a. all organisms are multicellular b. all cells come from preexisting cells c. DNA is the structural and functional unit of life d. all cells are approximately the same size e. proteins are the genetic material of cells
Which sequence represents the most typical order of events in seed germination?
a. shoot cells divide and elongate ? root cells divide and elongate ? seed coat splits ? water imbibition b. seed coat splits ? water imbibition ? root cells divide and elongate ? shoot cells divide and elongate c. water imbibition ? seed coat splits ? root cells divide and elongate ? shoot cells divide and elongate d. water imbibition ? root cells divide and elongate ? seed coat splits ? shoot cells divide and elongate
Through what process is O2 transported into the blood from air in the lungs?
a. active transport b. osmosis c. facilitated diffusion d. simple diffusion