Which statement is true?
a. Biome changes resulting from increased altitudes are similar to biome changes resulting from increased longitudes.
b. The biomes found at each specific elevation are essentially identical regardless of where they are found on Earth.
c. Isolated geographic regions may be home to many unique species.
d. Endemic species originate in environments hostile to most other life.
c. Isolated geographic regions may be home to many unique species.
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Which type of phagocytic immune cell would you find in the nasal epithelium?
A. monocyte B. macrophage C. basophil D. mast cell E. natural killer cell
An immature male gametophyte is called a(n) _________.
A. Pollen tube B. Megasporangium C. Pollen grain D. Naked seed E. Ovule
What must be present in a flower in order for it to make seeds?
a. sepals b. carpels c. stamens and sepals d. stamens and carpels
Three molecules of the fatty acid in question 8 are joined to a molecule of glycerol (C3H8O3). The resulting molecule has the formula:
a. C48H96O6 b. C48H98O9 c. C51H102O8 d. C51H98O6 e . C51H98O6