What feature/s is/are shared by your skin, your lungs and your gut?
A. All are continuous with the outside of the body.
B. All are lined by epithelial cells.
C. A and B
D. Neither A nor B
Answer: C. A and B
You might also like to view...
An environment that favors individuals with intermediate phenotypes results in what type of selection?
a. gradual b. punctuated c. disruptive d. directional e. stabilizing
Which of the following is an adaptation to land seen in ferns but not in mosses?
a. vascular system b. alternation of generations c. ovules d. seeds e. spores
In phototropism, shoots respond to ____ light
a. red b. green c. yellow
d. blue e. ultra-violet
Why do growth rates appear to be declining in many human populations?
A) Families are choosing to have fewer children. B) Death rates are increasing due to disease epidemics and famines. C) Birth rates are decreasing due to famine. D) The carrying capacity has been reached.