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Year 7 science exam

Classification component of exam

QuestionAnswer
The M in Mrs.Gren stands for Movement
The first R in Mrs.Gren stands for Respiration - breathing
The S in Mrs.Gren stands for Sensitivity to the environment
The G in Mrs.Gren stands for Growth
The second R in Mrs.Gren stands for Reproduction - able to make babies
The E in Mrs.Gren stands for Excretion - able to get rid of waste
The N in Mrs.Gren stands for Nutrition - need food to survive
Unicellular An organism made up of one cell
Multicellular An organism made up of more than one cell
Kingdom Animalia Multi-cellular, with no cell wall, has a true nucleus and gets nutrition from eating or absorbing food
Kingdom Plantae Multi-cellular, has a cell wall, has a true nucleus and gets nutrition from photosynthesis (using the sun light to make energy)
Kingdom Fungi Mostly multi-cellular, has a cell wall, doesn't have a true nucleus and gets in nutrition by breaking down the material that they grow on
Kingdom Protista Unicellular organism, most have no cell wall, it has a true nucleus and some get nutrition from absorbing food and others get it by photosynthesis
Kingdom Monera Unicellular organism, has a cell wall, doesn't have a true nucleus, get nutrition from a number of different techniques
Cell wall A wall around the cell that acts to protect the cell
True nucleus A location where all the genetic information is stored
Order of classification Kingdom, Phylum, Class, Order, Family, Genus, Species
Dichotomous key A classification key the branches the organisms into two groups at a time
Binomial nomenclature That the scientific name of the organism is the Genus and the Species
Vertebrate Has a back bone
Invertebrate Doesn't have a back bone
Exoskeleton Has an external skeleton
Endoskeleton Has an internal skeleton
Radial Symmetry symmetry around a central axis (jellyfish)
Bilateral symmetry symmetry over a mid line (humans)
Features of birds Feathers, hard shell egg, break, constant body temperature
Features of reptiles Scales, leathery shell eggs, lungs, changing body temperature
Features of amphibians Moist skin, eggs with no shell, larvae live in water and adults live on land, changing body temperature
Features of fish Only found in water, changing body temperature, gills, eggs with no shell, scales
Features of mammals Hair or fur, females have mammary glands for milk, constant body temperature
Five vertebrates Birds, reptiles, amphibians, fish, mammals
Features of arthropods Body is divided into segments, exoskeleton, paired legs
Features of echinoderms Body has a five-part pattern, move through water by pushing water through tubes on their bodies
Features of molluscs Most have a soft body, no legs, a muscular foot for movement
Features of Porifera Spongy body with no organs or tissue, exoskeleton made of pointed 'needles'
Features of Cnidarians Hollow soft body, no organs, have tentacles
Features of Annelids Segmented worms with internal organs
Features of Nematodes Round worms, unsegmented
Features of Platyhelmithes Flat worms, unsegmented
Created by: NWSP12