Life Science Chapter 1 Flashcards

Organism

A living thing

Something that has all of the characteristics of life

Cell

The basic unit of life

Unicellular

An organism that is made up of 1 cell

Multicellular

Organisms that are made up of more than one cell

Homeostasis

The ability of an organism to keep internal conditions stable, no matter what is changing in the environment

What are the characteristics of life?

Response to stimuli Homeostasis

Reproduction

Organized

Use energy

Grow and develop

Adapt and evolve

What is organization?

Parts do specific jobs to make the whole organism work Atomsorganisms

What is growth? What is development?

Growth=getting bigger

Development=changes that happen during lifetime

What is reproduction?

Making babies

What is stimulus? What is a response?

Stimulus=something that causes a response Ball thrown

Response=the reaction Blinked

Where does all energy ultimately come from?

The sun Even meat-Animal ate animals that ate plants that got their energy

from the sun

Binomial nomenclature

2-word naming system for organisms

Species

Closely related organisms that can mate and have fertile offspring

Genus

Closely related species

Dichotomous Key

Tool for identifying organisms 2 options

Cladogram

Branching diagram showing evolutionary relationships between organisms

Parts of scientific name

Genus species

6 Kingdoms

Animalia

Plantae

Fungi

Protista

Archaea

Bacteria

3 Domains

Eukarya (Animalia, Plantae, Fungi, Protista)

Bacteria (Bacteria)

Archaea (Archaea)

Why use scientific names?

Universal names

Avoids confusion over organisms

Very specific

Why is Carolus Linnaeus important?

Kingdoms

Binomial nomenclature

Classification levels

Domain

Kingdom

Phylum

Class

Order

Family

Genus

Species

Scientific names of humans and favorite animal-Write correctly

Homo sapiens

Dracorex hogwartsia

3 Rules for Scientific Names

1. 1st word capitalized

2. 2nd word lowercase

3. Both names underlined