An element that represents less than 0.01 percent of body weight is known as a(n)
a. compound.
b. trace element.
c. molecule.
d. isotope.
e. analog.
B
You might also like to view...
What evolutionary force is definitely not responsible for generating the obvious differences between races?
A. genetic drift B. natural selection C. sexual selection D. gene flow
Factors that affect the final amount of stored energy in an ecosystem include all of the following
EXCEPT a. the size of the producers. b. the availability of mineral nutrients. c. how much sunlight and rainfall are available during a growing season. d. the temperature range. e. the type of decomposers.
Both monocots and dicots protect their young shoots as they emerge from the soil. Describe how each group accomplishes this
What will be an ideal response?
The scrotum is a sac-like structure outside the abdomen in which the testes are suspended. Why is this structure essential?
A. There is too much hormonal influence if they remain in the abdomen. B. There is not enough space in the abdomen to grow properly. C. Lower temperature is required for normal development of sperm. D. Sperm must be closer to the penis to be ejaculated.