What is chemistry?

the study of living things and how they change

the study of matter and how it changes

the study of what living things are made of

the study of matter and how it moves

What kind of organisms have cell wall

How does smoking impact the respiratory system?

Which of the following is an example of an observation? a. How much light is needed for plants to grow taller. b. If the speed of a car increases, then it will require more distance to stop. c.

What's a watt? a. unit of power b. unit of intensity c. unit of pressure d. unit of force

During gym class, Raul walks briskly for a half hour. Jenna decides to sprint and run the bleachers for the same amount of time.

What are at least 5 important words associated with the water cycle? What do they mean? Why are they important?

Which of the following organisms is NOT a protist? a. water molds c. Amoebas (protozoans) b. Escherichia coli d. Diatoms (algae)

A 56 year-old pro golfer is having mohs micrographic surgery for skin cancer on his forehead. the surgeon performs the surgery with two stages. the first stage includes 4 tissue blocks and the second stage includes 6 tissue blocks.

13. Excess salt is removed from the body through sweat glands in the skin, This is an interaction between systems.

a cell with 5% salt concentration is placed in a beaker with 1% salt concentration. what will happen to the cell over time