Which one of the following statements about carbohydrates is true?
a. carbohydrates are a friendly fuel.
b. carbohydrates are fattening.
c. a teaspoon of carbohydrate contains twice as many calories as the same amount of fat.
d. carbohydrates are stored, rather than burned, by the body.

What process did darwin’s book suggest that organisms evolve through

Which of the following birds remained ancient looking in the miocene epoch? a. crows b. owls c. grouses d. none of the above

Asap timed! 1. ice core samples from glaciers ice caps contain bubbles of ancient atmosphere that are in layers based on age. what questions are scientists most interested in? a. how the amount of water vapor needed to make the ice has changed b. how the amount of ozone has changed over time.c. how the amount of ice in each layer has changed over time d. how the amount of carbon dioxide has changed over time 2. what produces milankovich cycles ? a. sunspots ams solar flare on the suns surface b. changes in the earths orbit c. gravitational changes bases on the position of the sun and the moond. cycles of vegetation that result in desert and rainforest conditions