Which of the following statements about cells is true?
A) All cells have cell walls.
B) All cells have internal structures that move.
C) All cells are attached to other cells.
D) All cells are motile.
Answer: B) All cells have internal structures that move.
You might also like to view...
Which of the following would be an accurate comparison of mitosis and meiosis?
1.Mitosis takes place in animals; meiosis takes place in plants. 2.Mitosis gives rise to cells that are genetically identical; meiosis gives rise to cells that have half the amount of genetic information as the original cell. 3.Mitosis takes place for producing eggs and sperm; meiosis takes place for growth and repair of damaged tissue. 4.Abnormal cell growth would be due to errors in meiosis.
All of the following participate in apoptosis except
A) caspases. B) death signals. C) mitochondria. D) Bcl-2. E) APC ubiquitin ligase activity.
The corkscrew movement of spirochetes is due to
a. cryptic motility. b. polar flagella. c. cilia. d. endoflagella.
_________________ is a type of genetic drift that results from a natural disaster (such as a hurricane or volcanic explosion) or human - caused event (overhunting) that randomly wipes out a large portion of a population.
A. Gene flow B. Migration C. The bottleneck effect D. The founder effect