Describe the structure of phospholipids, and state where they are found in cells
What will be an ideal response?
Phospholipids have hydrophobic tails and hydrophilic heads. This allows them to form a layer in which the hydrophilic heads will point toward water outside and the hydrophobic tails point away from the water and associate with the hydrophobic tails of other phospholipids. Phospholipids are largely found in the outer membrane of a cell.
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Fitness is a measure of reproductive success. If an individual with genotype BB produces 6 offspring, and a heterozygous individual (Bb) produces 10 offspring, and a third individual with genotype bb produces 5 offspring, what is the fitness value for the individual with BB genotype?
A. 1.0. B. 0.5. C. 0.6. D. 0.4. E. 1.1
In the figure above, the amount of energy
symbolized by the line "A" would be the
a. reactant energy. b. product energy. c. cofactor energy. d. activation energy. e. intermediate energy.
As more CO2 is released into the atmosphere, which of the following would you predict may happen to S. yellowstonensis diatoms in Yellowstone Lake?
a. Their shells would get thicker b. There would be no effect because CO2 does not dissolve into water c. Photosynthesis would decrease d. They would grow more spines e. They would revert back to S. niagarae
A sea star suffers from an infection that affects its ampullae. Due to the infection, the ampullae no longer function. What do you predict will be the effect on the sea star?
A. No noticeable effect will occur. B. The sea star will be unable to reproduce. C. The sea star will be unable to extend its tube feet. D. The sea star will be unable to store energy.