life Review

Biology

The study of living things and their environment.

life

living things collectively

homeostasis

process by which organisms maintain a relatively stable internal environment

eukaryotes

organisms made up of one or more cells that have a nucleus and membrane-bound organelles - on the right

prokaryotes

single-celled organisms that do not have a membrane-bound nucleus - on the left

asexual

a type of reproduction involving only one parent that produces genetically identical offspring by budding or by the division of a single cell or the entire organism into two or more parts

unicellular

made of a single cell

multicellular

consisting of many cells

tissue

a part of an organism consisting of an many similar cells having a similar structure and function

organs

group of tissues that work together to perform closely realated functions

Reproduction

the process of generating offspring, sexually or asexually

metabolism

the organic processes (in a cell or organism) that are necessary for life

Growth

the process of an organism becoming larger due to the production of more cells which make up that organism

Response to stimuli

show a response or a reaction to something

Energy

being used or produced by living things through cell respiration and/or photosynthesis

heterotrophic

Organisms that are unable to construct their own food from inorganic sources, and therefore must consume other organisms or organic molecules from the outside environment. Function as consumers or decomposes in food chains.

Autotrophic

An organism capable of synthesizing its own food from inorganic substances, using light or chemical energy. Green plants, algae, and certain bacteria are .

photosynthesis

Plants use the sun's energy to convert water and carbon dioxide into sugars

Adaptation

inherited characteristic that increases an organism's chance of survival

Evolution

The gradual change in a species over time