Intro To Living Things book 2 chp 1 Flashcards
Organisms
Living things
Cell
The basic unit of structure and function in an organism
Unicellular
Single celled organisms
Multicellular
Made of many cells
Metabolism
The combination of chemical reactions through which an organism builds up and breaks down
Stimulus
A change in an organism’s surroundings that causes the organism to react
Response
An action or change in behavior
Development
The process of change that occurs during an organism’s life, producing a more complex organism
Asexual
Only involves one parent and offspring looks exactly like parent
Reproduction
The creation of new life
Sexual reproduction
Involves two parents, combines their genetic materials and creates a new organism that differs from both parents
Spontaneous generation
The mistaken idea that living things can arise from non living sources
Controllers experiment
A scientist carries out a series of tests that are identical in every respect except for one factor
Autotrophs
Use the food they make to carry out the functions of life
Heterotrophs
Organisms that cannot make their own food