Which of the following is required by plants in the smallest quantity?
A. boron
B. potassium
C. phosphorus
D. nitrogen
E. sulfur
A. boron
Biology & Microbiology
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Dissolved oxygen content in stream water is affected by
(a) organic matter in the water. (b) overgrowth of algae. (c) water nutrient levels. (d) all of the above.
Biology & Microbiology
Fossil fuels
a. can be recycled. b. include biofuels. c. are the organic remains of ancient autotrophs. d. are still being generated by living autotrophs. e. are the remains of dinosaurs and ancient autotrophs.
Biology & Microbiology
WHAT IS ULTIMATE SOURCE OF ALL DIVERSITY?
A. NATRUAL SELECTION B. SEXUAL RECOMBINATION C. MEIOSIS D. MUTATION
Biology & Microbiology
The process of enzymatic hydrolysis takes place during:a
ingestion. b. digestion. c. absorption. d. egestion. e. elimination
Biology & Microbiology