The living, or ________, and nonliving, or ________, components of the environment interact within an ecosystem
Fill in the blank(s) with correct word
biotic; abiotic
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A construction company has cleared all the trees from an area near a river in order to build luxury homes with unobstructed views of the river. What do you predict will be the effects of this action? Check all that apply.
_____ An increase in the volume of water running off into the river. _____ A decrease in the amount of nutrients leached from the soil. _____ An increase in the concentration of nutrients in the run off entering the river. _____ A build up of inorganic nutrients in the soil of the deforested area. _____ Increased weathering of rocks in the deforested area.
Which of the following pollutants is associated with thyroid cancer?
a. nitrate b. nitrous oxide c. ammonia d. phosphate e. more than one of these
Which one of the following is responsible for severe birth defects if contracted during pregnancy?
a) Measles b) Rubella c) Chickenpox d) Fifth disease
An example of artificial passive immunity would be
A. a fetus acquiring maternal IgG to the chickenpox virus across the placenta. B. giving a person immune serum globulins to chickenpox virus after exposure to the disease. C. chickenpox vaccine triggers extended immunity to chickenpox. D. chickenpox infection is followed by lifelong immunity.