The plant genus Pinus reaches optimal growth when it grows with the fungal genus Suillusis. The ________ of the fungus give Pinus water and mineral nutrients, while Pinus gives the fungus sugars and organic macromolecules. Pinus and Suillusis have a
________ relationship.
A) hyphae; symbiotic
B) spores; symbiotic
C) chitin; eukaryotic
D) fruit; endothermic
Answer: A
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The process by which antibodies block interactions between pathogens or their products and host cells is termed
A) attenuation. B) complement. C) interference. D) neutralization.
When testing donated blood for compatibility you would find a person with O type blood
A) has O type antigens on their red blood cells. B) will lack plasma antibodies to A and B type antigens. C) will lack A and B red blood cell antigens. D) lacks HLA and MHC antigens. E) will have anti-O antibodies in their plasma.
In terms of number of species, the most successful terrestrial vertebrates that invaded the air are
A. flying monkeys. B. birds. C. bats. D. pterosaurs. E. insects.
True or False: Cells can move both toward a gradient and away from a gradient
a. TRUE b. FALSE