In an experiment, there are two groups. Which group is not changed in any way?

A. hypothesis

B. variable

C. experimental

D. control

What happened to the stem? Did it grow roots? What does this mean about your stem's ability to make growth chemicals? What substance could you have used to make the roots grow sooner?

What force draws the matter in an interstellar cloud together to form a star?

Definition of ribonucleic acid

Which statement best describes scientists who contributed to the current body of scientific knowledge?

What enzyme complex is responsible for the replication of DNA?

Experimental Design: As you are walking down a wooded path, you notice a large depression in the ground that has burn marks along the outside. What caused the hole?

Name the 4 major groups of organic compounds

During his lifetime A Redwood will become larger and more complex. It could be Alive because it displays which sign of life

1) Social media and technology have given teenagers more ways to act negatively toward each other. 2) Teens say they believe social media has a positive impact on their lives, with some reporting that it makes them feel "depressed, less popular,

What is the function of Rough and Smooth Endoplasmic Reticulum and where do secondary, tertiary and quaternary structure of protein form?