Are these Animal Classification notes free?

Yes. The full 3-page Animal Classification sheet is free inside CapCompass, which runs in your browser with no account needed.

What does the Animal Classification revision sheet cover?

Classification, Taxonomy, Binomial nomenclature, Why classify, and on what, Symmetry, Germ layers, Coelom, Notochord, The characters that do the sorting, The non chordate phyla, Chordata, Vertebrata.

Is this for Class 10 Maharashtra SSC Science?

Yes, it is written for the Maharashtra SSC Science syllabus.

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Animal Classification — Class 10 Maharashtra SSC Science revision notes

A 3-page visual revision sheet for Animal Classification, written for Class 10 Maharashtra SSC Science. Formulas, diagrams and the traps that cost marks, laid out to be read the night before rather than the term before. Free, and it opens inside CapCompass.

Animal Classification revision notes, page 1 of 3 — A preview of page 1 — all 3 pages open full size in the app.

Animal Classification in one look

sorting the animal kingdom by body plan, and the characters that place a new animal

Why classify, and on what

classification groups organisms by shared characters, so that a vast variety becomes manageable and relationships become visible
the hierarchy runs kingdom, phylum, class, order, family, genus, species, each level narrower than the one before
species is the basic unit: organisms that can interbreed and produce fertile offspring
binomial nomenclature, from Linnaeus, gives every organism a two word Latin name: genus first with a capital, species second in lower case
so the human is Homo sapiens, and the name is written in italics or underlined
the characters used are body plan features that do not change with the environment, rather than habitat or colour

The characters that do the sorting

symmetry: asymmetrical with no plan, radial with many planes through a centre, or bilateral with one plane giving mirror halves
germ layers: diploblastic animals have two layers and triploblastic have three, the third allowing complex organs
coelom: a true body cavity between the gut and the body wall. Coelomate animals have one, acoelomate do not
the coelom matters because it lets organs move independently of the body wall
notochord: a stiff supporting rod along the back. Its presence divides the whole kingdom into chordates and non chordates
segmentation is the repeated division of the body into similar units, seen first in the annelids

The non chordate phyla

Phylum	Marker	Example
Porifera	pores, no true tissues	sponge
Coelenterata	radial, diploblastic, stinging cells	hydra, jellyfish
Platyhelminthes	flat body, no coelom	tapeworm
Aschelminthes	round body, false coelom	roundworm
Annelida	true segmentation	earthworm
Arthropoda	jointed legs, exoskeleton	insects, crab
Mollusca	soft body, often a shell	snail, octopus
Echinodermata	spiny skin, water vascular system	starfish

Page 1 of 3. The full sheet, all 3 pages, opens free in the app.

What this Animal Classification sheet covers

Classification
Taxonomy
Binomial nomenclature
Why classify, and on what
Symmetry
Germ layers
Coelom
Notochord
The characters that do the sorting
The non chordate phyla
Chordata
Vertebrata
The chordates
The five vertebrate classes
Placing an unfamiliar animal
Reading the characters in order
Terms in this chapter
Traps that cost marks
Tricks that save time

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