An industrial ecologist's goals would NOT include:
a. increasing resource use efficiency by altering manufacturing processes.
b. designing products that are durable and can be de-manufactured.
c. identifying points in the product lifecycle at which waste products can be used in other processes.
d. identifying points in the product lifecycle at which waste products can be landfilled.
d. identifying points in the product lifecycle at which waste products can be landfilled.
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You have a really leafy houseplant that completely shades the soil in the pot where it is growing. You notice that some roots are starting to penetrate through the soil (likely these are new roots growing from the pericycle of an existing root)
If you do nothing, what would you expect to happen to the growth of these roots and why? A. The roots will continue to grow up because the root meristem tissue is arranged exactly like apical meristem tissue. B. The roots will continue to grow up because auxin is not being redistributed in the shady environment on the soil surface. C. The roots will grow downward back into the soil because the statoliths are redistributing due to gravity and that will change the direction of growth. D. The roots will grow downward because water stimulates root growth and the root will be more moist on the side that is touching the soil.
Vocal cords are made of:
a. smooth muscle b. cartilage c. skeletal muscle d. ligaments e. tendons
Which of the following statements is correct regarding DNA and RNA?
A) DNA remains in the nucleus at all times; RNA is produced in the nucleus but then leaves the nucleus. B) RNA remains in the nucleus at all times; DNA is produced in the nucleus but then leaves the nucleus. C) DNA and RNA both leave the nucleus after being produced. D) DNA and RNA both stay in the nucleus after being produced.
What happens quite often to the number of normal receptors in the plasma membranes of malignant cells as compared to normal cells?
a) Malignant cells usually have a much smaller number of plasma membrane receptors than normal cells. b) Malignant cells usually have the same number of receptors in their plasma membranes as normal cells. c) Malignant cells usually have no plasma membrane receptors, while normal cells have them. d) Malignant cells usually have a much larger number of plasma membrane receptors than normal cells. e) None of the choices is correct.