Which of the following is found in eukaryotic cells but not in prokaryotic cells?
A. nucleus
B. endoplasmic reticulum
C. mitochondria
D. lysosomes
E. All of these choices are correct.
Answer: E
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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.
Which of the following is a result of an incomplete dominance?
a. orange carnations b. white carnations c. pink carnations d. red carnations
Incest avoidance evolved in humans:
a. because breeding among close relatives leads to a higher proportion of offspring with genetic defects and, consequently, reduced fitness. b. as part of a larger fixed action pattern. c. because many bees, wasps, and ants can inflict painful, and even fatal, stings and bites. d. because in early human societies, alliances could be achieved by marrying the chief's daughter to the son of the chief of a different tribe. e. because breeding among close relatives leads to a higher proportion of offspring with increased fitness.
Mixed cultures are also referred to as contaminated cultures.
Answer the following statement true (T) or false (F)