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 Atoms organisms
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. 1 st word capitalized 2. 2 nd word lowercase 3. Both names underlined