Characteristics of Living Things
Which characteristic discusses the process of an organism increasing in size and complexity over time
Growth
How many cells can be found on and in the human body?
~100 trillion!
Something that is too small to be seen with the naked eye.
Microscopic
A standard metric unit of measurement used for human-scale objects.
Meter
Which is larger? a micrometer or a nanometer?
micrometer
Which characteristic describes how organisms have reactions that involve processes such as energy production, growth, and nutrient utilization.
Metabolism
What is the nucleus?
Command center (brain) of the cell
Small particles made of bound atoms; they make up cells but are much smaller than cells.
Molecules
A unit of length equal to 1/100 of a meter.
What would you measure a human with?
meter
What is every living thing made of?
Cells
What is the mitochondria?
Releases energy that the cell can use (powerhouse of the cell)
A group of microorganisms grown in a lab setting until they multiply into clusters big enough to see with the naked eye.
Bacteria culture
A large unit of length equal to 1,000 meters.
Kilometer
What would you measure an ant with?
millimeters or centimeters
Define response to stimuli
responding to changes in their environment through sensory receptors and nervous systems
Who was the first person to see cork cells?
Robert Hooke
A gelatin-like substance placed in petri dishes containing food and vitamins to help microorganisms grow.
Agar
A unit of length equal to 1/1000 of a millimeter, used to measure cells and bacteria.
Micrometer
What would you measure blood cells with?
micrometers
Define homeostasis
the ability of living organisms to maintain a stable internal environment despite external changes
Who was the first person to see a living cell?
Anton Van Leeuwwnhoek
The domain of living organisms made of cells containing a distinct nucleus.
Eukarya
A metric unit of length equal to 1/1000 of a micrometer, used to measure tiny molecules.
nanometer
What would you measure E.Coli bacteria with?
micrometers