Which of the following is true of both cilia and flagella?
A) They have a 9 + 2 pattern of microtubules.
B) They move in a back-and-forth manner.
C) They are numerous and are short extensions.
D) They are commonly found on cells of the respiratory tract.
Answer: A
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Detritus specifically includes:
a. exclusively organic wastes b. exclusively toxic materials c. small bits of decaying organic matter d. living bacteria and fungi e. toxic wastes and small bits of decaying organic matter
What is one function of the integumentary system?
a. blood cell formation b. immune function c. synthesis of proteins d. protection against desiccation e. exchange of gases
Unlike skeletal muscle, cardiac and smooth muscle do not respond at all to the nervous system, but contract on their own. Differences in the rate of contraction of smooth and cardiac muscle are due to the action of pacemakers in cardiac muscles
Indicate whether the statement is true or false
Answer the following questions true (T) or false (F)
1. People with genes for a form of hemoglobin known as hemoglobin C are at risk of fatal malaria disease. 2. Staphylococcus aureus is part of the upper respiratory microbiome. 3. Haemophilus influenzae is a common cause of sinus infections.