The body is made up of many different cell types, from small circular red blood cells to the elongated smooth muscle cells 20X its size. Why is there such variation in size and shape?
A. Variations in cell shape and size are due to chromosomal differences between cells.
B. Cell size and shape does not vary among cell types.
C. Different variations in size and shape allow differentiated cell types to perform unique functions.
D. Different cell sizes are due to nutritional differences.
Answer: C
You might also like to view...
Put the following steps of stomach acid production in the correct order starting with the reaction that requires an enzyme. 1. Carbonic acid dissociates. 2. Chloride ion combines with H+ in the gastric lumen. 3. Water and CO2 combine to form carbonic acid. 4. H+ and bicarbonate ion are transported into the gastric lumen. 5. Cl- diffuses into the gastric lumen
A) 3, 1, 2, 5, 4 B) 1, 3, 5, 2, 4 C) 4, 5, 3, 1, 2 D) 4, 5, 1, 2, 3 E) 3, 1, 4, 5, 2
The general process by which bones form is called
a) ossification b) osteomalacia c) calcification d) apposition e) orthodontics
Which facial bone is not one of a pair?
A. maxillary B. zygoma C. lacrimal D. palatine E. None of the above; they are all pairs.
The phenomenon in which some female coral reef fish spontaneously transform into males if the dominant male is removed is known as
A) Arrhenotoky. B) Protandry. C) Protogyny. D) Thelytoky.