What kind of receptor is used for vision?
A. Chemoreceptor
B. Nociceptor
C. Photoreceptor
D. Mechanoreceptor
Answer: C
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What is the correct order of occurrence for the steps of protein synthesis? 1. mRNA is produced in nucleus. 2. Ribosome moves along mRNA. 3. DNA uncoils for transcription. 4. Polypeptide is produced. 5. tRNA brings amino acids to ribosome. 6. mRNA moves to ribosome
A) 3, 1, 6, 2, 5, 4 B) 2, 4, 6, 1, 3, 5 C) 2, 1, 5, 4, 3, 6 D) 3, 5, 1, 6, 2, 4 E) 1, 5, 3, 4, 2, 6
________ involves active inspiratory and expiratory movements and calls on accessory muscles to assist with inhalation, while exhalation involves contraction of the internal intercostal muscles and sometimes abdominal muscles, too
A) Eupnea B) Forced breathing C) Costal breathing D) Vital breathing E) Passive breathing
Inorganic molecules contain carbon.
Indicate whether this statement is true or false.
In hyperopia,
a. the eyeball is too short or the lens is too weak b. A near object is focused behind the retina, even with accommodation c. A far source of light is focused ahead of the retina d. both a and b are the cause e. both a and c are the cause