B1.2 Vertebrates and invertebrates

thenerd123
Mind Map by thenerd123, updated more than 1 year ago
thenerd123
Created by thenerd123 about 6 years ago
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Mind Map on B1.2 Vertebrates and invertebrates, created by thenerd123 on 01/31/2014.

Resource summary

B1.2 Vertebrates and invertebrates
1 By Sadia Ali 10B
2 Vertebrates
2.1 animals that have a backbone
2.2 they belong to the phylum chordata
3 Invertebrates
3.1 animals that don't have a backbone
4 they are both divided into smaller groups
5 characteristics to group vertibrates
5.1 the way they absorb oxygen for respiration
5.1.1 Fish have gills
5.1.2 other groups of vertebrates have lungs
5.2 some vertebrates reproduce using external fertilisation
5.2.1 this is where the adult female releases her eggs into the water where they are fertilised by sperm released by an adult male
5.3 other vertebrates reproduce using internal fertilisation
5.3.1 many vertebrates in this group then lay eggs
6 Other characteristics
6.1 Homeotherms
6.1.1 an animal that keeps its body temperature more constant than the surroundings, and often warmer, by releasing heat from reactions in their body
6.2 poikilotherms
6.2.1 body temperature varies with the temperature of their surroundings
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