Scientists on a ship are using sonar to map the ocean floor. They send out a pulse at Point A that takes 4 seconds to return to the ship. At Point B, the sound pulse takes 8 seconds to return to the ship. What conclusion can you make? A. They are the same depth B. Water at Point A is twice as deep as that at Point B C. Water at Point B is twice as deep as that at Point A D. Water at Point B is half as deep as that at Point A

Sarah and john are having a discussion on genetic diversity. sarah believes that it happen over a long period of time. john it happens immediately. who is correct? a. sarah is correct because genetic diversity occurs over a long period of time. b. john is correct because genetic diversity occurs immediately. c. both are correct because genetic variation can occur or long period of time. d. neither are correct because genetic diversity occurs over any period of time

Human genes only differ by less than percent. a. 1 b. 6 c. 11 d. 16

How are fungi more like an animal? they have a cell wall. they are heterotrophs that absorb their food. they produce seeds and have membrane-bound nucleus. they use sunlight for photosynthesis.