An invertebrate, such as an insect, has innate immunity activity in its intestine that likely includes _____

A) a complement
B) lysozyme
C) mucus
D) neutrophils
E) dendritic cells


Answer: B

Biology & Microbiology

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Position-effect variegation of red and white eye color in Drosophila produces

A) one red eye and one white eyes. B) two red or two white eyes depending on which gene is dominant. C) eyes alternating red and white eye facets. D) eyes with red and white patches of varying sizes and positions.

Biology & Microbiology

During the Calvin-Benson cycle (carbon-fixing reactions), in the red Columbine plant, high-energy electrons are transferred into a newly made 3-carbon compound. Eventually these electrons will end up as part of glucose molecules. What was the original source of these electrons in photosynthesis?

a. glucose b. ATP c. oxygen d. water e. carbon dioxide

Biology & Microbiology

Which organisms are single-celled and lack a nucleus?

a. bacteria and archaea b. fungi and bacteria

c. archaea and protists d. fungi and archaea e. bacteria and protists

Biology & Microbiology

The syringe contains live R strain and heat-killed S strain pneumonia bacteria

A) the mouse will stay alive B) live S strain bacteria will be detected in the mouse's blood. C) no live S strain will be detected in the mouse's blood. D) none of the above.

Biology & Microbiology