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Unit 4 (6th grade)

Earth's organisms

species group of organisms that are very closely related
genus group similiar species.
domain The largest differences among organisms. Arranged in Bacteria, Archaea, and Eukatya
Bacteria contains all organisms within Kingdom Bacteria. Made up of Prokaryotes
Archaea all organisms in the Kingdom Archaea. Prokaryotes that reproduce by cell division
Eukarya Domain made up of all Eukaryotes which have a nucleus
Protista Called protists, they are single-celled or multicellular organism such as algae and slime molds
Fungi heterotrophs and their cell walls contain chitin
Plantae consists of multicellular organisms that have cell walls, mostly made of cellulose
Animalia Multicellular organisms that lack cell walls
binary fission reproduction in which a one-celled organism splits into two single-celled organisms
virus A microscopic particle that cannot replicate on its own.
host a living thing that a virus or parasite uses for resources or shelter.
gamete a reproductive cell that unites with another reproductive cell to form a zygote
spore reproductive cells that are resistant to stressfl environmental conditions
algae Multicellular plant-like protists
hyphae chains of threadlike fungal filaments
mycorrhiza Fungus found on the roots of plants that help the plant to absorb minerals
lichen a partnership between a fungus and green algae or cyanobacterium
producers make their own food by using energy from their surroundings. (plants)
photosynthesis converting solar energy to chemical energy
chlorphyll green pigment that captures energy from sunlight
vascular system a system of tube-like tissues that transports water, nutrients and other materials from one part of the organism to another part
seed a plant embryo enclosed in a protective coating
pollen a tiny structure in a plant where sperm forms
gymnosperm plants that produce seeds that are not enclosed in a fruit. (Pinecones.)
angiosperm vascular plants that produce flowers, and fruits which surround and protect seeds.
consumer an animal that eats other organisms, or parts of organisms, to get the energy it needs for life processes
invertebrate an animal without a backbone
exoskeleton invertebrates that have a hard external covering which supports the body. (turtles)
vertebrate animals that have backbones
endoskeletons an internal skeleton that supports an animals body
Created by: palmer_wwms