WorksheetsSC.6.L.14.1 - Life’s Hierarchy
Total questions: 10
Worksheet time: 5mins
Which choices shows the parts of an organism arranged by size from smallest to largest?
Atom, Tissue, Cell, Organ
Molecule, Cell, Tissue, Organ
Organ, Tissue, Cell, Molecule
Cell, Organ, Tissue, Organ System
The smallest unit of matter that has the properties of a substance
atom
molecule
element
none of these
A group of atoms held together by chemical bonds is
molecule
atom
mixture
none of these
The structural and functional unit of life is
protein
mitochondria
cell
organism
A group of similar cells that perform a common function
cell membrane
tissue
cell
organ
The brain, spinal cord, and nerves work together to control all body functions. What level of organization do they represent as a group?
cells
organ
organ system
tissue
1. Humans and other complex organisms have a hierarchical system of organization. Which of the following statements is true regarding this system of organization?
Atoms are made of cells.
Organs are made of organ systems.
Cells are made of tissues.
Organs are made of tissues.
1. In a human body, which of the following represents the highest level of structural organization?
an atom in the lung
lung tissue
the lungs
the respiratory system
