Which of the following is the FIRST STEP of the scientific method?

The smallest structural and functional unit of an organism... where life begins.

The theory stating that all living things are made of one or more cells, the cell is the smallest unit of life, and all new cells come from pre-existing cells.

Groups of similar types of cells that work together to carry out specific tasks.

Groups of different tissues that work together to perform a particular job.

An organelle of a eukaryotic cell that directs cell activity and contains genetic information stored in DNA. The brain of the cell.

An organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur. The powerhouse of the cell.

The maintenance of an organism’s internal environment (or creating "balance" inside your body) is called what?

Which major organ system is responsible for sending signals to and from our brains in order to help us maintain homeostasis?

Which of the following is another word that describes homeostasis?

How much genetic material is provided by the parents in sexual reproduction?

What is the sex cell that carries the 23 chromosomes from the male?

What is the sex cell that carries the 23 chromosomes from the female?

Letters are used to describe the genetic makeup of an organism. These letters are called:

Capital letters are used to show traits that are:

Lower case letters are used to show traits that are:

A chart that shows all the possible combinations of alleles that can result from a genetic cross is called what?

An organism that has two different alleles for a trait (hybrid), for example Yy:

An organism that has two identical alleles for a trait (purebred), for example YY or yy: