Biology 1-1

Biology

The study of life

organization

orderly structure shown by living things

Organization order

atom, molecule, organelle, cell, tissue, organ, organ system, organism

Cell

smallest unit of life

Unicellular

Made of a single cell

Multicellular

Consisting of many cells

Organs

Tissues are organized into:, group of tissues that work together to perform closely related functions.

Tissue

A group of similar cells that perform the same function.

Organelles

A tiny cell structure that carries out a specific function within the cell

biological molecules

the chemical compounds that provide physical structure and that bring about movement, energy use, and other cellular functions

Homeostasis

A tendency to maintain a balanced or constant internal state

Metabolism

the combination of chemical reactions through which an organism builds up or breaks down materials

develepment

a process by which an organism is a mature adult

Cell Divison

Process by which a cell divides into two new cells

Reproduction

the process of producing offspring

Gene

A segment of DNA on a chromosome that codes for a specific trait

organisation and cells, response to stimuli, homeostasis, metabolism, growth and development, reproduction, and change through time are all what?

Characteristics of life (know them!)