Dengue fever can be controlled by

a. eliminating the mosquito vector.
b. vaccination.
c. eliminating the rodent vector.
d. eliminating contact with the rodent vector.


Answer: A

Biology & Microbiology

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Some bird bones are hollow rather than honeycombed. The hollow bones mostly contain air sacs. The replacement of bone marrow with air sacs is properly understood as an adaptation that _____

1) reduces the weight of the bird 2) facilitates flight 3) eliminates the functions of bone marrow A) only 1 B) only 2 C) only 3 D) 1, 2, and 3 E) 1 and 2

Biology & Microbiology

An appendage that is an extension of the bacterial cell wall and plasma membrane is a(n) ________.

A. pilus B. prostheca C. mycelium D. flagellum

Biology & Microbiology

(Punnett square) When performing an actual cross, it is assumed that

What will be an ideal response?

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In a population of cattle, the following color distribution was noted: 36% red (RR), 48% roan (Rr), and 16% white (rr). This population is in a Hardy-Weinberg equilibrium. What will be the distribution of genotypes in the next generation if the

Hardy-Weinberg assumptions are met? A) 30% red; 60% roan; 10% white B) 40% red; 40% roan; 20% white C) 30% red; 50% roan; 20% white D) 36% red; 48% roan; 16% white

Biology & Microbiology