Which of the following is not part of the lower respiratory tract?
A. trachea
B. bronchi
C. alveoli
D. larynx
E. lungs
Answer: D
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Glucose, sucrose, and cellulose are examples of:
A) carbohydrates. B) disaccharides. C) monosaccharides. D) polysaccharides.
Which statement below is true about neurotransmitters?
A. The entry of neurotransmitter through K+ channels into neurons triggers the rising phase of the action potential B. Neurotransmitters are released from muscle cells to activate motoneurons in the presence of botulinum toxin C. Neurotransmitters are released from a neuron when action action potential reaches the end of its axon D. All of the above
What are the main causes of biodiversity loss?
A) Habitat destruction, overharvesting, and invasive species B) Invasive species, pollution, and climate change C) Habitat destruction, invasive species, and climate change D) Habitat destruction, overharvesting, invasive species, pollution, and climate change
Refer to the accompanying figure. Which of the following represents the fall turnover?
a. 1 going to 2
b. 2 going to 3
c. 3 going to 4
d. 4 going to 1
e. 4 going to 2