A _______ food web has photosynthetic organisms at its base, while a _______ food web has organisms that feed on decaying matter at its base.
a. detrital, grazing
b. grazing, herbivorous
c. grazing, detrital
d. grazing, trophic
c. grazing, detrital
A grazing food web has photosynthetic organisms at its base, while a detrital food web has organisms that feed on decaying matter at its base.
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The reason that better resolution cannot be achieved with the compound light microscopes used in the lab (i.e., the limiting factor of the compound light microscope) is the:
A) “high-tech” capabilities of the company that we purchased them from. B) manner in which the objective lenses were ground. C) fact that the eyepiece (ocular) magnification is only ×10. D) wavelength of visible light.
How do marine polychaetes use chitin hardened body parts?
a. as an excretory organ b. the chitin hardened tentacles, to move sand c. to chew and digest prey d. the chitin-hardened jaws, to capture prey e. the chitin-reinforced bristles, for movement and chitin hardened jaws to capture prey
Bones are important in balancing which mineral in the body?
a. sodium b. potassium c. iron d. magnesium e. calcium
Because glucose is a large molecule, it crosses the membrane through ____________________ diffusion. Fill in the blank(s) with the appropriate word(s)