The blood of the mother and the fetus mix in the placenta.
Answer the following statement true (T) or false (F)
False
The blood of the mother and the fetus never mix because exchange takes place across the villi.
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An organism with a cell wall would most likely be unable to take in materials through _____
A) diffusion B) osmosis C) active transport D) phagocytosis E) facilitated diffusion
Consider two islands located an equal distance from the mainland (colonization source). One island is large, the other is small. Which island will have a higher rate of change in species composition?
A. the small island B. the large island C. The rate of change in species composition will be the same on both islands. D. Species composition does not change at equilibrium.
A bowl of sugar water is very stable. However, cells can rapidly break down sugar into carbon dioxide and water. What is the best explanation for this observation?
A. Glucose becomes more chemically reactive inside a cell. B. The water is activated by the presence of living cells. C. Enzymes in the cell catalyze the breakdown of glucose. D. Living cells make the water warmer, speeding up the reaction. E. Breakdown of glucose has a negative delta G outside of cells, but a positive delta G inside cells. F. Cells use energy to break down glucose.
Four of the five answers listed below are chromosomal abnormalities. Select the exception
a. translocation b. elongation c. duplication d. deletion e. inversion