Which of these molecules structures could be found in a liquid, but not on a carbohydrate, protein, or a nucleic acid? A. a long chain of carbon, oxygen, and nitrogen atoms
B. a long chain made only of carbon and hydrogen atoms
C. a phosphate group joined to a chain of carbon atoms
D. an amino group and a carboxyl group bonded together ​

How do you transfer mrna into codons ? i'm so confused : (

After reading the paragraph below, answer the questions that follow. researchers have created a robot that has a very thin leg that is moved by cardiac (heart) cells contracting in unison. the robot, made of a polymer similar to that used in making contact lenses, is bathed in heart cells with supporting cells, which then attach to the robot and provide movement as they contract. all of the cardiac cells working together can cause the robot leg to move in a way that individual cells could not. this is an example of a. emergent properties of cells. b. energy flow through an ecosystem. c. adaptation. d. internal environment regulation.

Round seeds and yellow seed color are dominant to wrinkled seeds and green seed color. which punnett square represents the correct way to set up the cross rryy  ´  rryy?