Which process is an example of a function carried out by the skeletal system?
a. transmission of mechanical forces
b. conduction of nerve impulses
c. regulation of body temperature
d. transportation of hemoglobin
e. contraction of muscle fibers
a
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Which type of plant has a network of cell that conduct water and solutes throughout the plant’s body?
a. nonvascular plants b. vascular plants c. gymnosperms d. angiosperms
A scientist suspects that the food in an ecosystem may have been contaminated with radioactive nitrogen over a period of months. Which of the following substances could be examined for radioactivity to test the hypothesis?
A) the cell walls of plants growing in the ecosystem B) the hair produced by humans living in the ecosystem C) the sugars produced during photosynthesis by plants growing in the ecosystem D) the cholesterol in the cell membranes of organisms living in the ecosystem
Carbon dioxide (CO2 ) in the atmosphere is absorbed by ________ and converted into biomass
A) the ozone layer B) other atmosphere gases C) photosynthetic organisms D) large land masses
Describe the basic structure of an antibody and detail the function of each of the 5 antibody classes
What will be an ideal response?