Characteristics of Life/Cell Theory/Scientists/Viruses
Terms in this set (29)
Is the basic unit of structure and function in an organism
A change in an organism's surrounding that causes the organism to react.
An action or change in behavior
regulation of an organism's internal environment to maintain conditions suitable for life
Production of offspring
Two cells (sperm and egg) unite to produce the first cell of the new organism
When an organism just divide themselves in two
Living things in an ecosystem.
Nonliving physical or chemical part of an ecosystem.
Process of becoming larger.
Process of change that occurs during on organism's life.
A group of cells that are similar in structure and work together to perform a specific function
A group of tissues that perform a specific function.
A group of organs that work together to perform one or more functions.
English Scientist credited with the discovery of plant cells using a microscope. He viewed thin slices of cork.
A German scientist who along with Schleiden is best known for developing the cell theory that all living things are composed of cells. He established that the cell is the basic unit of all living things
Know as the father of modern pathology. Credited with the idea that all cells come from existing cells.
German scientist who best known along with Schwann for developing the cell theory that all living things are composed of cells. Establishing that the cell is the basic unit of life.
1. All living things are composed of one or more cells.
2. The cell is the basic unit of life and organization.
3. All cells arise from preexisting cells.
a microscopic agent that is unable to grow or reproduce without a host cell. It is not a cell but does have DNA or RNA covered by a protein coat.
Organization of Life
Cells>>>> Tissues>>>> Organs>>> Organ systems>>>> Organism
the sum of all chemical reactions in an organism used to convert nutrients into energy
the division of a cell into two daughter cells with the same genetic material.
a special characteristic that enables an organism to better fit its environment.
Anton van Leeuwenhoek
First person to observe living cells in a drop of pond water with a simple microscope
Process that creates different types of specialized cells
Special cells that can differentiate into specific types of cells
The protein shell of a virus that surrounds its genetic material (DNA or RNA)
A living cell that is infected with a virus
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