What stage of cellular respiration can occur in human cells with or without oxygen present?
A. The Krebs cycle
B. Glycolysis
C. The electron transport chain
D. Pyruvate oxidation
B. Glycolysis
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In the Gibbs free-energy relationship, why is the T term necessary?
A) The free-energy change caused by a change in entropy is a function of temperature. B) The free-energy change caused by a change in potential energy is a function of temperature. C) The free-energy change caused by a change in electrical charge is a function of temperature.
In the example above, what is the probability
that this couple will have a normal child?
a. 0 b. 1/4 c. 1/3 d. 2/3 e. 1/2
What is one result of the bottleneck effect?
a. balanced alleles b. heterozygosity c. decreased genetic diversity d. disruptive selection e. random mating
Robert, an aspiring scientist in a biology class, wanted to conduct a study on the effects of cigarette smoke on the web-building ability of spiders. Which of the following statements is an incorrect use of terms pertaining to the scientific method?
a. Robert made the observation that spiders weave webs. b. Robert wanted to see if his theory was true that cigarette smoke will influence web-building in spiders. c. Robert concluded that there was no significant difference in the ability to weave a web under conditions of cigarette smoke compared to spiders that were not exposed. d. Robert examined the webs from both the control group and the test group and they were recorded in a table. e. As a control, Robert had a group of spiders that were never exposed to cigarette smoke.