What can a geologist understand by studying the fossil composition of sedimentary rocks? how animals built their shelters

how animals built their shelters

how life forms evolved over time

how life forms evolved over time

how some extinct animals preyed on others for food

how some extinct animals preyed on others for food

how land animals used rocks as habitats

The breakdown of food is accomplished by enzymes. a. physical b. chemical c. mechanical d. none of the above

Hershey and chase confirmed that dna, not protein, was the genetic material. how do the results of their two experiments support this conclusion?

You and a group of friends are spending your vacation hiking through the mountains. it is cold in the mountains. you will be expending a lot of energy while hiking and you will need plenty of energy to keep you warm. you should pack foods high in to provide the most energy or kilocalories per gram of food. a) carbohydrates b) lipids (fats) c) proteins d) sugars