Euglenoids live in freshwater; a __________ rids them of excess water. Fill in the blank(s) with the appropriate word(s)
contractile vacuole
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Is a ribozyme a true enzyme?
a. Yes, because it is a catalyst. b. No, because it is not a protein. c. No, because it cannot catalyze a reaction. d. Yes, because it can synthesize a protein. e. No, because it doesn't require cofactors.
Sweat glands and the salivary glands are types of ________ tissue.
Fill in the blank(s) with the appropriate word(s).
A patient has a heart attack and wakes up in the hospital. He gets a visit from his doctor, who says he had to shock the patient's heart because part of it had gone into fibrillation
The doctor jokes that it could have been worse if the other part of the heart had been in fibrillation and that the patient was really lucky. Which chambers of the heart in the patient were in fibrillation, the atria or the ventricles?
You should eat a variety of vegetables because
A. vegetables are an excellent source of protein. B. different vegetables have different vitamins and minerals. C. plants contain toxins and eating only one could be harmful. D. None of the above is correct.