Levels of Biological Organization Quiz

Study Notes

Levels of Biological Organization

Biological organization is a hierarchy from simplest (atoms) to most complex (biosphere).
Atoms are the fundamental units of matter.
Molecules are combinations of atoms (ionic or covalent bonds).
Organelles are structures inside cells.
Cells are the basic units of life.
Tissues are groups of cells with the same function.
Organs are groups of tissues performing specific functions.
Organ systems are two or more organs working together for a common function.
Organisms are composed of different body systems; they are self-contained individuals.
Populations are organisms of the same species in a given area.
Communities are different populations in an area.
Ecosystems are communities plus the abiotic (non-living) parts.
Biomes are characterized by common plants, animals, and abiotic factors due to their environments.
The biosphere is the zone of life on Earth, encompassing all ecosystems.

Formative Activity Answers

What is the most complex level of organization? Organism
Organs that work together to perform a related function are called ___? Organ system
The human body is composed of organ systems. Which list represents a system from the least to most complex? Muscle cell --> muscle tissue --> biceps muscle --> muscular system
Which of the following best describes a tissue? Group of cells working together to perform a specific function.
What is a multicellular organism? An organism with two or more cells.
Mitzi has learned that the brain, spinal cord, and peripheral nerves work together. What do they combine to form? Organ system
An organism such as a worm may only have 100 cells. It should be classified as being ____. Multicellular organism.
Which of the following examples is correctly matched with its level of organization? The skin is an organ.
Cells are..... Structural and functional units of all living things.
Which of the following displays the levels of organization INCORRECTLY from smallest to largest? Community, Ecosystem, Biome, Biosphere (should be Biosphere, Biome, Ecosystem, Community)

Description

Test your knowledge on the different levels of biological organization, ranging from atoms to the biosphere. This quiz covers key concepts including molecules, cells, tissues, organs, and ecosystems. Dive into the intricate hierarchy that forms the foundation of biological science.