Once inside an erythrocyte, the Plasmodium begins to enlarge as a uninucleate cell called a ________.
A. sporozoite
B. trophozoite
C. schizont
D. merozoite
Answer: B
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When bone tissue first evolved in vertebrates, it was found within _____
A) an endoskeleton B) an exoskeleton C) a vertebra D) a skull E) a jaw
A researcher has hypothesized that the chemical tributyltin (an additive in boat paint) seeps into the water causing reproductive defects in developing marine snails
In an experiment testing the effects of tributyltin on developing snails, which condition should be used as a control? A) Developing snails are kept in a tank of water and exposed to below-expected levels of tributyltin. B) Developing snails are kept in a tank of water and exposed to boat paint without tributyltin. C) Developing snails are kept in a dry tank to avoid exposure to contaminated water. D) Developing snails are kept in a tank of water that has been cleaned with chlorine bleach.
In the light-independent reactions, when CO2 is added to a molecule of Ribulose 1,5-bisphosphate (RuBP) the product is
A. pyruvate. B. glyceraldehyde-3-phosphate. C. 3-phosphoglycerate. D. citric acid. E. glucose.
A thin layer of protein, within epithelial tissue, that anchors the epithelium to the extracellular matrix is the
A. basement membrane. B. compact bone. C. hyaline cartilage. D. plasma membrane. E. neuroglia.