Pathogens spread by
a. direct contact.
b. indirect contact.
c. inhalation.
d. contact with a vector.
e. all of these
E
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Cells that have membrane-bound organelles and cytoplasm are classified as ________ cells
Fill in the blank(s) with correct word
The relationship between biomass and primary productivity is that:
a. biomass is the rate of primary productivity b. biomass is the inverse of primary productivity c. biomass is the natural log of primary productivity d. primary productivity is the inverse of biomass e. primary productivity is the rate at which biomass is produced
Which is not a potential advantage of asexual reproduction?
A) It allows animals that do not move around to produce offspring without finding mates. B) It saves the time and energy required to produce gametes. C) It produces genetically diverse populations. D) It allows animals that are genetically well suited to a particular environment to quickly expand their populations.
Which pf the following explains why gases are termed "compressible" and liquids are not?
a) particles have fixed volume and are able to occupy the contained in which they are contained b) particles do not have much empty space between them, thus making them rigid c) particles have a large amount of empty space between them d) particles are held closely together by intermolecular forces