Which organ arose as an outpouching from the gut in bony fish?
a. liver
b. limbs
c. wings
d. lungs
e. heart
d
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Three-spined stickleback fish (Gasterosteus aculeatus) show substantial heritable variation in gill-raker length related to differences in their diets. Longer gill rakers appear to function better for capturing open-water prey,
while shorter gill rakers function better for capturing shallow-water prey. Which of the following types of selection is most likely to be found in a large lake (open water in the middle and shallow water around the sides) with a high density of these fish? A) directional selection B) stabilizing selection C) disruptive selection D) sexual selection
Which of the following is recommended for preventing the spread of tuberculosis from a hospitalized patient to others in the hospital environment?
A. Patient is placed in a negative pressure room. B. Heath care providers and visitors wear respirator when entering infected patient's room. C. Infected patient wears a mask when others are in the room. D. Misting the room with disinfectant. E. Respirators worn by individuals entering the room and placement of a patient in a negative pressure room.
According to the second law of themodynamics, energy cannot be created nor destroyed
__________________ Indicate whether the statement is true or false.
Bioinformatics is a discipline involved in the development of both hardware and software for processing, storing, and retrieving nucleotide and protein data
Indicate whether the statement is true or false