Biology: Chapter 1

The scientific study of life

Structural and functional unit of living thing

Organisms consisting of single cells

Organisms consisting of many cells

a collection of specialized cells and the substances they secrete that function in a coordinated fashion

A structure consisting of tissues organized to interact to carry out specific functions

organs connected physically or chemically that function together

chemical reactions within cells that maintain life

the ability to keep conditions constant, regulating internal enviroment

any reproduction which does not require the fusion of gametes

a sex cell, the sperm and ovum

genetuc material (gametes) from two individuals join to form a third indiviual which had a new combination of inherited traits. (genes passed to offspring)

is a response that develops over time; inherited characteristics or behavior that enables them to reproduce in an enviroment

to investigate how or why thing as they are in nature

general way of thinking and organizating an investigation

prediction; possible explanation; guess ( are not valid unless you test it)

Organized body of knowledge that applies to a variety of situation, has to be tested over and over, are not likely to be rejected

factor being tested or manipulated

Result or change that occurs due to the independent, responding

factors held constant for all test subjects