Planktonic organisms that spend part of their lives in planktonic form and the rest of their lives as either benthos or nekton are called:
What will be an ideal response?
Meroplankton
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Which statements about acid precipitation are accurate? Check all that apply.
_____ Acid rain is intermediate between point-source and diffuse pollution. _____ Mercury is a pollutant that often accompanies acid precipitation. _____ Acid precipitation is a severe problem in areas with soils having high buffering capacity. _____ Acid precipitation can affect aquatic ecosystems. _____ Acid precipitation can affect forests, weakening the trees and making them more susceptible to disease.
Which structure develops first in a deuterostome?
a. anus b. mouth c. limbs d. heart
Hair cells are important in the sense of:
a. touch b. hearing c. taste d. sight e. equilibrium
According to Thomas Malthus, food supplies tend to increase arithmetically while populations tend to increase exponentially, which means that populations will outgrow their food supply.
Answer the following statement true (T) or false (F)