Calculate a personal daily fat allowance for a person with an energy intake of 1700 kilocalories and a goal of 25% of kilocalories from fat.
a. 425 grams
b. 106 grams
c. 47 grams
d. 189 grams

In addition to seeds, which of the following characteristics are unique to the seed-producing plants? a) sporopollenin b) lignin present in cell walls c) pollen d) use of air currents as a dispersal agent e) megaphylls

The earth consists of a variety of different organisms. despite their diversity, however, some similarities on the structural and metabolic levels may be seen. these similarities can be attributed to a. similarities among organisms in their proteins and nucleic acids. b. the ability of organisms to readily adapt to sudden environmental changes. c. similarities in organisms' habitats and niches. d. the ability of all organisms to interbreed and produce new species.

Compare the composition of the moon's surface with the composition of the earth's surface.