In order to understand the carbon cycle, it is important to recognize where carbon can be found on earth. Carbon can be found in
What will be an ideal response?
air
ocean water
organic molecules
plants
animals
bacteria
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Which of the following statements is true regarding bacteria?
A. Like many eukaryotes, bacteria species can be described by the biological species concept. B. The majority of bacteria species have already been cultured. C. Bacteria can influence and alter the behavior of eukaryotes. D. Soil "genome surveys" cannot be used to identify new bacteria species. E. Many groups of bacteria include methanogenic organisms.
Why are hydroponics used in mineral nutrition experiments examining essential elements?
What will be an ideal response?
How much energy is ultimately converted into chemical energy by photosynthesis?
a. less than 1% b. 1-2% c. 5% d. 10% e. 20%
At which of the following stages of meiosis would homologous chromosomes be paired?
A) prophase of meiosis I B) both prophase of meiosis I and prophase of meiosis II C) metaphase of meiosis I D) metaphase of meiosis II E) both prophase of meiosis I and metaphase of meiosis I