Hemoglobin is one of the major buffer systems in the body.
a. true
b. false
Ans: a. true
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The most ancient group of plants alive today are:a
horsetail. b. club moss. c. hornworts. d. liverworts. e. gymnosperms.
Which of the following is an activity included in the stages of cytoplasmic division?
a. cytokinesis b. condensation of DNA into chromosomes c. separation of sister chromatids in the cytoplasm d. movement of chromosomes into alignment on the metaphase plate
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