During an experiment, what is the purpose of a control group? Group of answer choices

To disprove the theory

To produce replicated results of other groups

To compare results to the experimental group with the variable being tested

To prove the hypothesis

What are the types of mutations, and how does each alter the encoded protein? college level answer

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.

Hummingbirds drink nectar from flowers, while robins eat plant seeds. what does this reduce?