Which of the following is an underwater robotic system that allows for wide-ranging observations of the marine environment?
A) ROV
B) Critter cam
C) Satellite
D) Passive sonar system
Ans: A) ROV
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The openings to the ___________ system (respiratory system) in insects are termed _________.
A. spiracle, tracheae B. tracheal, bronchi C. spiracle, alveoli D. tracheal, spiracles E. tracheal, stomata
Renal failure may result from
a. complications of diabetes b. high blood pressure c. damaged blood vessels in the kidneys. d. pesticide, lead, or arsenic exposure e. all of these.
Why are bees important to the reproductive success of flowering plants?
a. Bees carry pollen to other plants. b. Bees provide honey for the plants. c. Bees transport nutrients to the plant. d. Bees insert pollen into a flower’s ovule. e. Bees beating wings scatters pollen to the air.
A significant contribution of intestinal bacteria to human nutrition is the benefit of bacterial _____
A) production of vitamins A and C B) absorption of organic materials C) production of vitamin K D) recovery of water from fecal matter