Which of the following serve to increase the surface area of a cell for absorption and/or secretion?
A. Microvilli
B. Cilia and microvilli
C. Cilia and flagella
D. Flagella
E. Cilia
Answer: A
You might also like to view...
Respiratory alkalosis is a result of _______.
A) too much carbon dioxide in the blood B) too little oxygen in the blood C) too much oxygen in the blood D) too little carbon dioxide in the blood
When blood vessels become surrounded by concentric lamella forming osteons, the bone will grow in ________.
A. diameter B. the epiphyseal plate C. the articular cartilage D. length E. All of the choices are correct.
At birth the hairs of the scalp, eyelids, and eyebrows are replaced by coarser pigmented hairs called ________ hairs.
A. vellus B. pubic C. terminal D. lanugo E. primary
If the pacemaker cells in the SA node become more permeable to potassium ions,
A) the heart rate will increase. B) the heart rate will decrease. C) the membrane will depolarize. D) the membrane will hyperpolarize. E) both heart rate will decrease and membrane will hyperpolarize.