Characteristics of Life

Front

What are all living things composed of?

Back

1 or more cells

Front

The genetic material that determines an organism's characteristics and traits is ___? Options: RNA, DNA, Protein, Enzyme

Back

DNA

Front

According to cell theory, where did an Amoeba cell come from? Options: another pre-existing amoeba cell., energy from sun that allowed the protist to reproduce., a multicellular organism., the nonliving environment.

Back

another pre-existing amoeba cell.

Front

Robert Hooke, Anton van Leeuwenhoek, Theodor Schwann, Rudolf Virchow, and Matthias Schliden were all responsible for what theory?

Back

The Cell Theory

Front

Which of the following statements is not part of the cell theory? Options: Cells are the basic unit of structure and function in all living things., All cells are produced from other cells.,

Only animals are composed of cells.

, All living things are composed of cells.

Back

Only animals are composed of cells.

Front

The ability of cells to maintain a constant internal state is called ___?

Back

homeostasis

Front

Why was the invention of the microscope so important for biology?

Back

It allowed the development of the cell theory.

Front

Why do doctors today have confidence in their knowledge about how cells in the body work?

Back

The cell theory has been tested, refined, and observed to be true over hundreds of years.

Front

How do organisms grow?

Options: increasing the size of each cell in the body, increasing the number of cells in the body, forming organs out of cells that clump together, changing the function of each cell as needed

Back

increasing the number of cells in the body

Front

Which characteristic of life explains why humans sweat when they get hot?

Back

maintaining homeostasis