At the bottom or base of a pyramid of energy
are the
a. primary consumers.
b. primary producers.
c. secondary consumers.
d. secondary producers.
e. tertiary consumers
B
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Select the following phylum that includes coelomate, bilaterian animals that have a structure called a notochord.
A. Echinodermata B. Annelida C. Arthropoda D. Mollusca E. Chordata
Compare and contrast the formation, properties, and characteristics of covalent and ionic bonds. What will be an ideal response?
Imagine you are working for the Florida Public Health Department and you have been assigned the task of preventing malaria from spreading throughout the southern Everglades. Which of the following scenarios would have a chance of success?
A. devising an insect repellant that would prevent the Anopheles mosquito from biting a human host B. developing a vaccination that would prevent the ability of the merozoites to reproduce within the host's bloodstream C. spraying the edges of the Everglades with a pesticide that will kill mosquitos D. All of these scenarios would have a chance of success in preventing malaria from spreading throughout the southern Everglades.
Where do plants get the carbon they use to make organic molecules?
a. glucose b. oxygen c. water d. starch e. carbon dioxide