Algin is a substance used to thicken products as diverse as ice cream, cosmetics, and floor polish. It is
extracted from the cell walls of ____ algae.
a. green
b. golden
c. blue-green
d. brown
e. red
D
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Which of the following is part of the appendicular skeleton?
a. The sacrum b. The sternum c. The pelvic girdle d. The hyoid bone
The enzyme ________ breaks down the extracellular matrix to facilitate angiogenesis
Fill in the blank with correct word.
Gap1 of the cell cycle represents the time when the cell is doing what it is supposed to do as part of its cell type. In other words, that is when a liver cell is doing its function as a liver cell.
a. true b. false
What is the appropriate order of the stages of investigating whether maple trees drop their leaves in the autumn because of colder days?(1) Maple trees are grown in two greenhouses where the only variable is temperature (15°C vs. 10°C).(2) The hypothesis is rejected.(3) There is no statistical difference in the number of leaves dropped at 10°C as compared to 15°C.(4) The observation is that maple trees drop their leaves in autumn.(5) The hypothesis is that maple trees drop their leaves because of colder temperatures.
A. 3, 4, 5, 1, 2. B. 3, 4, 2, 1, 5. C. 1, 2, 3, 4, 5. D. 5, 4, 3, 1, 2. E. 4, 5, 1, 3, 2.