Chapter 3 + 9.2 Science Test Vocab

7th grade - Q2

domain

the highest level of classification of organisms

kingdom

the level of classification of organisms below domain

Domain Archaea

a domain in which its members, bacteria, don't have a true nucleus and are primitive bacteria that live in extreme conditions

Domain Bacteria

a domain in which its members, bacteria, don't have a true nucleus and are typical, true bacteria that live everywhere

Domain Eukarya

a domain where the cells contain 1 or more nuclei and has 4 kingdoms

producer

gets energy by making its own food

autotroph

an organism that makes its own food (AKA a producer)

consumer

gets energy by eating other organisms

heterotroph

an organism that gets food from eating other organisms (AKA a consumer)

Kingdom Protista

a kingdom in which its members, protists, have a nucleus, most are single celled, and some are consumers and some are producers

Kingdom Fungi

a kingdom in which its members have a nucleus, most are multicellular, and they are decomposers

Kingdom Plantae

a kingdom in which its members, plants, are multicellular, have a nucleus, and are producers that make their food from photosynthesis

photosynthesis

the way plants make energy, through converting energy from the sun and storing it in the form of molecules

Kingdom Animalia

a kingdom in which its members, animals, have a nucleus, are multicellular, and they are consumers

taxonomy

the process of identifying and classifying living things

species

a group of similar organisms that can produce offspring

scientific name

the two-part scientifically recognized name given to an organism, consisting of its genus and species

dichotomous key

a tool that helps its users identifying natural objects like birds, trees, rocks, fungi, and insects (it has 2 options to choose from and then those options narrows down to 1 organism)

taxonomist

someone who specializes in identifying, naming, and classifying living things

prokaryotic

cells don't contain a nucleus

eukaryotic

cells do contain a nucleus

chemosynthesis

using chemicals to produce their food instead of the sun

anaerobic

bacteria that does not require oxygen to survive

aerobic

bacteria that uses oxygen for cellular respiration

a- or an-

not, without, lacking, and deficient

aero-

air

archaeo-

primitive, ancient

auto-

self

bacter- or bactr-

bacterium, stick, club

di- or dipl-

two, double

eu-

well, good, true, normal

hetero-

different, other

-kary-

cell, nucleus

-nom- or -nomy

ordered knowledge, law

pro-

forward, favoring, before

spec- or spic-

look at

tax-

arrange, put in order

-troph-

nourishment, one who feels

8 Levels of Classification

Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species

3 Domains

Archaea
Bacteria
Eukarya

4 Kingdoms of Eukarya

Protista
Fungi
Plantae
Animalia

biodiversity

a variety of different life forms