Coal-burning power plants also are big contributors
to __________, which alters habitats and kills many
organisms. Fill in the blank(s) with the appropriate word(s).
Answer: acid rain
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An important bacterial mediated process that occurs on the surface of plant roots is called ________ nitrogen fixation.
What will be an ideal response?
In human females, one of the sex chromosomes is switched off during early development in a
phenomenon called a. karyotyping. b. X inactivation. c. X linkage. d. crossing over. e. SRY activation.
At night, CAM plants incorporate CO2 into __________, which is stored in the __________ of their
cells. a. fructose; vacuoles b. acetyl CoA; mitochondria c. glucose; starch granules d. pyruvate; starch granules e. malate; vacuoles
During meiosis I, homologous chromosomes undergo ______, and crossing-over between nonsister chromatids occurs.
Fill in the blank(s) with the appropriate word(s).