Which substance is not a biofuel?
a. Alcohols
b. Gases
c. None of these are biofuels
d. All of these are biofuels.
e. Oils
d
You might also like to view...
Skin and mucous membranes
A. are the first line of innate immunity. B. are the first line of adaptive immunity. C. act as physical barriers to infection. D. contain antimicrobial secretions. E. are the first line of innate immunity, act as physical barriers to infection, AND contain antimicrobial secretions.
Intertidal chitons and snails use the ____ as a means of attachment to the rocks
a. foot b. mantle c. visceral mass d. head e. radula
Which of the following are NOT seed-bearing
plants? a. cycads b. ferns c. ginkgos d. angiosperms e. conifers
Malaria is caused by Plasmodium falciparum, a non-motile protist that contains a cluster of microtubules at one end of the cell. Once injected into the blood stream, these microtubules are used to attach to red blood cells. Plasmodium falciparum is which of the following?
a. A protozoa b. An algae c. A slime mold d. A diatom e. An apicomplexan