6. The human arm, a bat's wing, a whale's flipper, and a horse's foreleg are examples of
A. Analogous Structures
B. Homologous Structures
C. Vestigial Structures
D. Fossils
I

How many moles of al3+ ions are in 1.25 moles of al2o3

3. how much energy in joules is required to evaporate .0005 kg of liquid ammonia to vapor at the same temperature? 4. how much energy ( in megajoules ) is given up by .75 kg of water at 0c when it freezes to form ice at 0c? 5. explain how heat works between and at critical temperatures?

An animal cell loses the ability to convert energy stored in food to energy that the cell can use. which of the cell's organelles has stopped working? a. the mitochondria b. the nucleus c. the vacuoles d. the endoplasmic reticulum