Sewage and waste from waterways is controlled with
a. sewage treatment.
b. chlorine.
c. UV disinfection.
d. solar aquatic systems.
e. all of these.
Answer: e
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Mycorrhizal fungi interact with plants at the
A. cuticle. B. edge of ponds. C. stomata. D. seed coat. E. roots.
Which of the following is a member of the domain archaea?
a. proteobacteria b. gram positive bacteria c. methanogen d. spirochetes e. chlamydias
Which phrase best describes sister chromatids?
a. two chromosomes having an identical DNA sequence b. two chromosomes having different alleles of the same genes arranged in a different order c. two chromosomes having the same alleles of the same genes in a different order d. two chromosomes having the same genes in the same order, but having different alleles
What is meant by double fertilization in flowering plants?
What will be an ideal response?