Carbon returns to the atmosphere
A. from respiration of plants.
B. by the burning of fossil fuels.
C. All of the answer choices are correct.
D. from respiration of animals.
E. as carbon dioxide.
C. All of the answer choices are correct.
You might also like to view...
A 36-year-old woman is on a cruise ship and later develops nausea, abdominal pain, vomiting, and diarrhea. She is most likely suffering from which virus?
a. Norovirus b. Rotavirus c. Coronavirus d. Torovirus
Shawfiq must have a benign tumor removed from his brain. The surgeon tells him that only local anesthesia will be administered as she cuts through Shawfiq's scalp and that he will remain conscious the whole time
Shawfiq is really nervous about this because the brain seems to be a very sensitive area to have surgery on, particularly while he is wide awake. Explain to him why he shouldn't be so nervous.
Compounds that inhibit receptors by preventing the natural messenger from binding are known as
A) agonists. B) arrestins. C) sildenafils. D) syndecans. E) antagonists.
Why is ATP needed for muscle contraction?
A) It's needed for calcium release from the sarcoplasmic reticulum. B) Myosin must contact the actin filament and move to pull it toward the midline of the sarcomere. C) It causes calcium to bind to troponin. D) It causes tropomyosin to slide off the myosin-binding sites of actin.