Which type of skeleton is found in earthworms?
a. Exoskeletons
b. Axial skeleton
c. Endoskeletons
d. Appendicular skeleton
e. Hydrostatic skeleton
e
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Which photoreceptor cell type is present at high concentration in the fovea?
A. amacrine cells B. cone cells C. bipolar cells D. rod cells
Blue flower color (B allele) is dominant to white (b allele). If a population of plants in Hardy-Weinberg equilibrium contains white flowers (bb) at a frequency of 0.04, what is the frequency of the blue flower allele (B)?
A. 0.2 or 20% B. 0.64 or 64% C. 0.32 or 32% D. 0.8 or 80% E. 0.96 or 96%
An insect or other organism that transmits disease from one host to another is called a ________
Fill in the blank(s) with correct word
Based on the endosymbiont theory, which of the following would you expect to find in a chloroplast?
A. cellulose B. a nucleus C. silica D. DNA E. a mitochondrion