What types of plants are in the class known as monocots and the family Poaceae?
A) peas
B) grasses
C) palm trees
D) maple trees
B
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How does the complement system aid in the defensive responses of an organism?
A. Lysis of antibody-coated Gram-negative bacteria B. Activation of phagocytic cells C. Attraction of phagocytic cells D. All of the choices are correct.
The megasporangium of seed plants is enclosed by leaf-like structures called
a. megaphylls b. microphylls c. cambia d. integuments e. none of these
What are antigenic shifts?
A. Sudden, significant changes to a major antigen of a pathogen that make the pathogen easier for the immune system to recognize. B. When a pathogen moves the antigens around on its surface to disguise itself from the immune system. C. Gradual changes over time to a major antigen of a pathogen that occur through mutation. D. Sudden, significant changes to a major antigen of a pathogen that usually occur through reassortment and can cause a pandemic.
List the three processes involved in the formation of urine in order. 1. tubular secretion 2. tubular reabsorption 3. glomerular filtration
A. 1, 2, 3 B. 2, 3, 1 C. 2, 1, 3 D. 1, 3, 2 E. 3, 2, 1