Which of the following statements is not true? Which of the following statements is not true? Archaea and bacteria have different membrane lipids. Only bacteria have histones associated with DNA. The cell walls of archaea lack peptidoglycan. Only some archaea use CO2 to oxidize H2, releasing methane. Both archaea and bacteria generally lack membrane-enclosed organelles.

The arrows in the illustration point to

1. you serve a volleyball with a mass of 2.1 kg. the ball leaves your hand with a speed of 30 m/s. the ball has energy. calculate it. 2. a baby carriage is sitting at the top of a hill that is 21 m high. the carriage with the baby weighs 12 n. the carriage has energy. calculate it. 3. a car is traveling with a velocity of 40 m/s and has a mass of 1120 kg. the car has . calculate it.

Why do you suppose the structural polysaccharide cellulose does not contain branches?