How can we help?

You can also find more resources in our Help Center.

16 terms

Characteristics of Living things

STUDY
PLAY
cell
The smallest unit of life
stimulus
Anything that causes a reaction or change
homeostasis
The maintenance of a constant internal state in a changing environment
sexual reproduction
Reproduction which the sex cells from two parents unite producing offspring that share the traits of both parents
asexual reproduction
Reproduction that does not involve the union of sex cells and in which one parent produces offspring identically to itself
heredity
The passing of genetic traits from parent to offspring
metabolism
The sum of all chemical processes that occur in an organism
producer
An organism that an make its own food by using energy from its surroundings
consumer
An organism that eats other organisms or ogranic matter
decomposer
An organism that gets energy by breaking down the remains of dead organisms
protein
A molecule that is made up of amino acids and that is needed to build and repair body structures
carbohydrate
A class of energy giving nutrients that includes sugars, starches and fiber
lipids
A type of biochemical that does not dissolve in water, fats and steriods
phospholipid
A lipid that contains phospherous and that is a structural component in cell membranes
ATP
Adenosine triphosphate, a molecule that acts as the main energy source for cell processes
nucleic acid
A molecule made up of subunits called nucleotides

Flickr Creative Commons Images

Some images used in this set are licensed under the Creative Commons through Flickr.com.
Click to see the original works with their full license.