What would be the ultimate effect on an ecosystem if decomposers were eliminated?
a. The rate of photosynthesis would increase.
b. The consumers would have to eat twice as much.
c. Energy flow between producers and consumers would increase.
d. All life would eventually cease as nutrients would no longer be available.
e. Producers would outgrow consumers due to the excess of carbon dioxide.
d
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Naturally occurring antimicrobial chemicals may include
A. benzoic acid. B. lysozyme. C. allicin. D. peroxidase. E. All of the choices are correct.
_____ is a process that maintains conditions in the internal environment within ranges that cells can tolerate
Fill in the blank(s) with correct word
White blood cells have surface receptors called _________ receptors that serve as their "feelers" for foreign substances.
A) Pattern recognition B) Pathogen molecular C) Antibody recognition D) Immunogenic
Which of the following statements about hair cells is not true?
A. Their structure includes stereocilia and a kinocilium. B. Bending of the cells triggers ion flow across the cell membrane. C. They are found in the mammalian ear. D. They are found in the fish lateral line system. E. They can be repaired if they rupture.