Biology Chapter 1 Vocab

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all the bolded words in the textbook :)

Biology

the scientific study of life

Biosphere

All the environments on Earth that support life

Ecosystem

All the organisms living in a particular area, as well as nonliving components

Community

All the organims living in an ecosystem

Population

All the individuals of a species living in a specified area

Organism

An individual living thing

Organ System

Several organs that work together in performing specific functions

Organ

A part of the body that performs a specific function

Tissue

An integrated group of cells with a specific function and structure

Cell

A basic unit of living matter

Organelle

A structure that performs a function in the cell

Molecule

A cluster of atoms held together by chemical bonds

Emergent properties

New properties that emerge with each step upward in the hiearchy of life as complexity increases

Producers

Photosynthetic organisms that provide food

Consumers

Organisms that eat producers and consumers

Systems Biology

An approach to studying biology that aims to model the dynamic behaviors of an entire cycle

Prokaryotic

A simple cell found in microorganisms

Eukaryotic

A complex cell found in plants and animals

Genes

Units of inheritance that transmit information from parent to offspring

Species

Particular kinds of organisms

Domains

Three overarching groups that organize the kingdoms of life

Bacteria

A prokaryotic kingdom

Archaea

A prokaryotic kingdom along with Bacteria

Eukarya

A eukaryotic kingdom

Evolution

Darwin's theory that species living today are descendants of ancestral species

Natural Selection

Darwin's theory that organisms that are the best suited to their environment evolve

Hypothesis

A proposed explanation for a series of observations

Theory

A proposed explanation of many hypotheses that is based on evidence

Controlled Experiment

An experiment that is designed to compare an experimental group to a control group

Technology

The practical application of scientific knowledge

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