Molecular oxygen that is breathed in is expired as carbon dioxide
Indicate whether the statement is true or false.
ANS: F, H2O
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The basic unit of matter is referred to as a(n) ____
Some help with this, please?
All viruses are made up of two components. What are they?
A. fiber proteins that extend from the body of the virus and one or more tails that are used for locomotion B. RNA and DNA C. a plasma membrane and DNA within a nucleus D. a protein capsid and genetic material, in the form of either RNA or DNA
Which of the following is not true of RNA processing?
A. RNA splicing can be catalyzed by spliceosomes. B. Nucleotides may be added at both ends of the RNA. C. Exons are cut out before mRNA leaves the nucleus. D. A primary transcript is often much longer than the final RNA molecule that leaves the nucleus. E. Ribozymes may function in RNA splicing.
Australopithecis anamensisis a good direct ancestor for Australopithecus afarensis
a. true b. false