If something is called a vitamin, it cannot be made by the organism and must be taken in as a part of diet.
a. true
b. false
Answer: a. true
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Gravitropism is based on feedback from which of the following plant structures?
a. vine tendrils b. phototropins c. all of the choices d. statoliths
When examining a mutant mouse, you notice that its skeletal muscle looks very uniform, lacking in striations. To figure out what the mutation is in this mouse, you would begin by looking at
A. sarcomere organization. B. the retention of calcium in the endoplasmic reticulum. C. tendons. D. the blood vessels in the muscles. E. the sheath around muscles.
Which property is true of living things?
a. They are stable over time. b. They are stable over many generations. c. They use protein as their hereditary material. d. They must obtain all organic molecules of life from external sources. e. They consist of one or more cells.
How are mitosis and cytokinesis alike?
A. Both involve DNA synthesis. B. Both involve division. C. Both involve the nucleus. D. Both involve mitochondria. E. Both involve apoptosis.