Living organisisms and Body Systems retest

How can a Paramecium carry out all of life's functions?

• by having specialized cells

• by being larger that most organisms

• by being smaller that most organisms

• by performing all processes in one cell

What is the difference between single-celled organisms' and multicellular organisms' ability to survive?

• Multicellular organisms depend on other organisms for survival, while single-celled organisms do not.

• Single-celled organisms depend on other organisms for survival, while multicellular organisms do not.

• Single-celled organisms contain many specialized cells necessary for survival, while multicellular organisms do not.

• Multicellular organisms contain many specialized cells necessary for survival, while single-celled organisms can survive alone.

Which best explains why a human needs many cells to survive?

• Each individual cell is too small to function alone.

• Each cell joins with other cells to form one massive cell.

• Each cell works with other cells to perform all necessary life functions.

• Each cell absorbs a different gas from the environment necessary for human survival.

A scientist is trying to decide whether an organism is unicellular or multicellular. Which information would help the scientist most to make her decision?

• size of the cells of the organism

• what the organism eats

• how many types of cells are in the organism

• how fast the organism grows

Which characteristic do single-celled organisms and multicellular organisms have in common?

• Both have cells with specialized functions for each life process.

• Both perform all life processes within one cell.

• Both have a way to get rid of waste materials.

• Both are able to make food from sunlight.

Which is an example of a single-celled organism?

• amoeba

• insect

• fish

• worm

Which best explains how a single-celled organism can survive without other cells?

• They do not need any substance from outside of the cell.

• They are able to perform all necessary functions within one cell.

• They do not need to perform more than one function to survive.

Which organisms are capable of surviving as a single cell?

• bacteria

• humans

• plants

Which best describes a function of both multi-celled and single-celled organisms?

• to create specialized tissues

• to rely on specialized cells to complete certain tasks

• to obtain energy from nutrients to maintain life and growth

Which is a cardiovascular muscle?

• lung

• heart

• stomach

• diaphragm