Which of the following is involved in unconscious contraction responsible for dilating or constricting your blood vessels and airways?
a. Simple squamous epithelium
b. Simple cuboidal epithelium
c. Smooth muscle
d. Simple columnar epithelium
e. striated muscle tissue
Answer: c. Smooth muscle
You might also like to view...
Your professor asks you to explain the difference between a tendon and a ligament. How do you answer?
A. Tendons secure muscles to other muscles and ligaments secure bones to other bones. B. Tendons and ligaments have the same function but are found in different areas of the body. C. Tendons secure muscles to bones and ligaments secure muscles to other muscles. D. Tendons are just enlarged ligaments. E. Tendons secure muscles to bones and ligaments secure bones to other bones.
Congenital deafness in humans is due to the homozygous condition of either or both of the recessive
genes d or e. Both dominant D and E are necessary for normal hearing. Gene D/d affects the middle ear, while gene E/e affects the inner ear. It does not matter how good the normal inner ear (as indicated by E_) is; if there is something wrong in the middle ear, the individual is unable to hear. The same applies for the other gene. Give the phenotypic results of the following crosses: (a) Dd EE ? Dd EE (b) Dd Ee ? Dd Ee (c) dd EE ? DD ee (d) Dd EE ? Dd ee (e) Dd EE ? DD Ee What will be an ideal response?
Differences in populations may arise over time when physical structures in the environment, such as mountains or large bodies of water, change. These structures are referred to as
A) Pangaea. B) continental drift. C) macroevolution. D) geographical barriers. E) micro-isolation bottleneck effect.
What oxidizing agent is used to temporarily store high energy electrons harvested from glucose molecules in a series of gradual steps in the cytoplasm?
A. ADP B. FADH2 C. NAD+ D. oxygen