1.1 Themes and Concepts of Biology

Molecule

A chemical structure consisting of at least two atoms held together by a chemical bond

Adaptation

A consequence of evolution by natural selection, all organisms exhibit a fitness to their environment

Reproduction

Ability to generate offspring. Replication of DNA, genes are passed along (fur color, blood type)

Sensitivity or Response to Stimuli

All living organisms can respond to outside stimuli, such as plants and phototropism

Population

All the individuals of a species living within a certain area

Organs

Collections of tissues grouped together based on a common function

Order

Consist of one or more cells, can be remarkably complex. Cells can also group together to perform specific functions within an organism

Regulation

Coordination of internal functions, such as carrying oxygen to cool the body and deliver nutrients to each cell

Macromolecules

Large molecules typically formed by combining smaller units called monomers EX: DNA

Properties of life

Order, sensitivity or response to stimuli, reproduction, adaptation, growth and development, regulation, homeostasis, and energy processing

Prokaryotes

Single cell organisms that lack organelles surrounded by a membrane and don't have nuclei surrounded by nuclear membranes

Organelles

Small structures that exist within cells and perform special functions

Cell

Smallest fundamental unit of structure and function in living organisms

Biology

The scientific study of life

Growth and Development

consistent growth and development controlled by inherited DNA

Organism

individual living thing

Homeostatis

process by which organisms maintain a relatively stable internal environment

Energy Processing

the use of chemical energy to power an organism's activities and chemical reactions, Gathered from the sun or energy from other molecules they consume

Tissues

Groups of similar cells carrying out the same function

Eukaryotes

Have membrane bound organelles and nuclei

Organ system

Higher level of organization that consists of functionally related organs