7th grade science test

Which of the following best describes the relationship between cells and living things in general?

• The larger the living thing, the larger its cells.

• The number of cells in all living things is the same.

• All living things are made up of one or more cells.

• There is one kind of cell of which all living things are made.

A new species of living thing is discovered. The cell theory states that which of the following must be true about this new living thing?

• It must be made up of one or more cells.

• Its cells must be able to make their own food.

• All its cells must perform the same function.

• Some of its cells must include a cell wall.

What sort of evidence must be gathered to support the idea that all living things are composed of cells?

• Comparisons should be made between nonliving things and living things to determine any similarities in their structure.

• Samples of many kinds of living things should be examined under a microscope to identify the presence of cells.

• The functions of cells from many different living things should be monitored to see if they are identical.

• Nonliving things should be examined to verify that the smaller parts of which they are composed are not cells.

Which statement about the cell theory is correct?

• New cells form from old cells that have died.

• Cell organelles are the smallest units of life.

• All cells have the same internal structures.

• All living things are made up of cells.

The cell theory holds true for multicellular and unicellular organisms. Which of the following is NOT true of the cell theory?

• Organisms are made up of one or more cells.

• The cell is the basic structural unit of all organisms.

• All cells are considered to be nonliving.

• An organism may consist of one single cell.

The smallest units of life that make up all living things are -

• organ systems

• tissues

• cells

• organs

The stomach, small intestine, and large intestine are all organs. When they work together to process food, they form a functional unit known as -

• an organism

• a system

• a tissue

• a cell

A collection of cells with similar function forms -

• an organ

• a tissue

• an organism

• an organ system

Which of the following correctly orders the organization in plants and animals from least to most complex?

• Organisms--- Organ Systems-- -Organs--- Tissues--- Cells

• Tissues--- Cells--- Organs--- Organisms--- Organ Systems

• Organs--- Tissues--- Organisms--- Cells--- Organ Systems

• Cells--- Tissues--- Organs--- Organ Systems--- Organisms

What is considered to be the lowest level of organization in a multicellular organism?

• cell

• organ system

• tissue

• organ