Which type of eye can form an image?
A. eyecup
B. compound eye
C. single-lens eye
D. compound eye and single-lens eye.
D
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What are the criteria Conservation International has established to determine if an area is a conservation hotspot?
A) They contain at least 1500 endemic vascular plant species and they have more than at least 50 percent of their traditional or primary vegetation. B) They contain at least 500 endemic vascular plant species and they have lost at least 20 percent of their traditional or primary vegetation. C) They contain at least 500 endemic vascular plant species and they have more than at least 50 percent of their traditional or primary vegetation. D) They contain at least 1500 endemic vascular plant species and they have lost at least 70 percent of their traditional or primary vegetation. E) They contain at least 1500 endemic vascular plant species and they have more than at least 70 percent of their traditional or primary vegetation.
Atoms in which the number of electrons does not equal the number of protons are known as:
A. valences. B. ions. C. isotopes. D. isomers.
All cases of paralytic polio acquired in the U.S. between 1980 and 1999 were caused by Sabin's polio vaccine
Indicate whether this statement is TRUE or FALSE.
A ribosome consists of ____
a. two small subunits b. two large subunits c. three subunits of different size d. rRNA and ribosomal proteins e. tRNA and ribosomal proteins