Chris is studying the chemical properties of different amino acids. Thus, he is paying
particular attention to __________.
a. hydrocarbon chains
b. the R group
c. triglycerides
d. enzymes
B
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Lichens live on the sides of trees to access sunlight. During this process there is no apparent harm nor benefit to the tree. This is an example of
A. commensalism. B. parasitism. C. herbivory. D. predation. E. mutualism.
Steve decides to make a meal for some of his friends. He uses a variety of foods to prepare the meal, including some canned mushrooms. Unfortunately, he gives his friends a mild case of botulism food poisoning
His friends report blurred vision and trouble speaking due to a flaccid paralysis of the muscle cells by the botulinum toxin. Propose a mechanism by which this toxin would inhibit muscle contraction.
In the light-dependent reactions of photosynthesis,
a) oxygen is used to synthesize sugars. b) carbon dioxide is used to synthesize sugars. c) glucose is oxidized. d) ADP is converted to ATP.
Match the letter of each example from childbirth to the appropriate component of a positive feedback loop.A. pituitary gland secretes oxytocin, which acts on the uterusB. uterine contractions increaseC. fetus is pushed against uterine openingD. receptors detect stretchE. brain receives and compares stretch informationEffector
What will be an ideal response?