Animal Classification | Evolution | Biology | FuseSchool
Summary
TLDRThis educational video delves into the animal kingdom, highlighting its classification into over 30 phyla with a focus on the five main ones: Arthropoda, Annelida, Mollusca, Nematoda, and Chordata. It distinguishes between vertebrates and invertebrates, using mnemonics like 'Auntie Anne makes nice cakes' and 'FMER Bob ate Mite rolls' to aid memory. The video clarifies that all vertebrates belong to the Chordata phylum, explaining characteristics of major vertebrate classes: fish, birds, amphibians, mammals, and reptiles. It also explores arthropods, emphasizing their exoskeleton and jointed legs, and differentiates between insects and arachnids, providing a comprehensive overview of animal classification.
Takeaways
- π All living things are categorized into five kingdoms, with the animal kingdom being one of them.
- π Before diving into the animal kingdom, it's helpful to understand the taxonomic ranks: Kingdom, Phylum, Class, Order, Family, Genus, and Species.
- π There are over 7.5 million species of animals on Earth, with 900,000 of them described.
- π Animals are classified into over 30 phyla, with the five main ones being Arthropoda, Annelida, Mollusca, Nematoda, and Chordata.
- π An acronym to remember these five main phyla is 'Auntie Anne makes nice cakes', which stands for Arthropoda, Annelida, Mollusca, Nematoda, and Chordata.
- 𦴠A key distinction in the animal kingdom is whether animals have a backbone or not, classifying them as vertebrates or invertebrates.
- π Vertebrates are further divided into five well-known classes: Fish, Birds, Amphibians, Mammals, and Reptiles, which can be remembered by 'FMER Bob ate Mite rolls'.
- π Mammals are a class of vertebrates characterized by having fur or hair, feeding their young with milk, and being warm-blooded.
- π·οΈ Arthropods, one of the main phyla, are diverse and include insects, arachnids, and crustaceans, all having an exoskeleton and jointed legs.
- π¦ Reptiles and amphibians can be confusing, but a key difference is that reptiles have scaly skin, breathe air, and usually live on land, while amphibians start in water and breathe with gills before developing lungs as they mature.
Q & A
How many kingdoms are living things grouped into?
-Living things are grouped into five kingdoms.
What is the estimated number of animal species on Earth?
-It is estimated that there are over 7.5 million species of animals on Earth.
How many of these animal species have been described?
-Approximately 900,000 animal species have been described.
What are the nine most common phyla within the animal kingdom?
-The script does not specify the nine most common phyla, but it mentions the five main ones: Arthropoda, Annelida, Mollusca, Nematoda, and Chordata.
What is the acronym to remember the five main animal phyla?
-The acronym to remember the five main animal phyla is 'Auntie Anne makes nice cakes' which stands for Arthropoda, Annelida, Mollusca, Nematoda, and Chordata.
What is the difference between vertebrates and invertebrates?
-Vertebrates have a backbone, while invertebrates do not.
What is a helpful mnemonic to remember the main classes of vertebrates?
-The mnemonic to remember the main classes of vertebrates is 'FMER Bob ate Mite rolls', which stands for Fish, Mammals, Amphibians, Reptiles, and Birds.
What characteristic defines mammals among vertebrates?
-Mammals are defined by having fur or hair, feeding their young on milk, and being warm-blooded.
How can you tell the difference between reptiles and amphibians?
-Reptiles have scaly skin, breathe air, and usually live on land, while amphibians start in water, breathe with gills, and as they grow, they develop lungs and live on land.
What is the relationship between the phylum Chordata and vertebrates?
-All vertebrates belong to the phylum Chordata, but not all members of Chordata are vertebrates.
What are some of the characteristics that define the five common classes of vertebrates?
-Each class has different characteristics: fish are aquatic, birds have feathers, amphibians can live both in water and on land, mammals have fur or hair and are warm-blooded, and reptiles are cold-blooded and have scaly skin.
Outlines
π Classification of the Animal Kingdom
This video script introduces the classification of living organisms, focusing on the animal kingdom. It mentions that there are over 7.5 million species of animals on Earth, with 900,000 described. These are categorized into over 30 phyla, with the nine most common ones being arthropods, annelids, mollusks, nematodes, chordates, and others. The script uses the acronym 'Auntie Anne makes nice cakes' to help remember the main animal phyla. It also distinguishes between vertebrates (with backbones) and invertebrates, using the mnemonic 'no backbone is longer' to remember that invertebrates lack a backbone. The chordates are highlighted as the phylum containing all vertebrates, and the video script suggests using 'FMER Bob ate Mite rolls' to remember the five well-known classes of vertebrates: fish, birds, amphibians, mammals, and reptiles. Each class has unique characteristics, such as mammals being warm-blooded and feeding their young with milk. The script encourages viewers to pause and explore the differences between these classes and ends by emphasizing the diversity and classification within the animal kingdom.
Mindmap
Keywords
π‘Kingdom
π‘Species
π‘Phylum
π‘Arthropods
π‘Vertebrates
π‘Invertebrates
π‘Chordata
π‘Acum
π‘Mammals
π‘Reptiles
π‘Arachnids
Highlights
All living things are grouped into five kingdoms, with the animal kingdom being the focus of this video.
A video on classifying organisms is recommended for a refresher on taxonomic ranks like kingdom, phylum, class, order, family, genus, and species.
There are over 7.5 million species of animal on Earth, with 900,000 described and arranged into over 30 phyla.
The most common phyla are Arthropoda, Annelida, Mollusca, Nematoda, and Chordata, which can be remembered by the acronym 'Auntie Anne makes nice cakes'.
Animals can be classified as vertebrates (with a backbone) or invertebrates (without a backbone).
The phylum Chordata contains all vertebrates, which can be remembered by the concept that 'no backbone' is longer to say than 'backbone', thus 'no backbone' must be invertebrate.
Vertebrates are further divided into five well-known classes: fish, birds, amphibians, mammals, and reptiles, remembered by 'FMER Bob ate Mite rolls'.
Mammals are characterized by having fur or hair, feeding their young on milk, and being warm-blooded.
Reptiles are distinguished from amphibians by having scaly skin, breathing air, and usually living on land, except for turtles which have a dual life cycle.
The phylum Arthropoda is explored in more detail, highlighting their hard exoskeleton and jointed legs.
Spiders are clarified as not being insects but belonging to a different class of arthropods called Arachnida.
Classes within the animal kingdom break down further into subclasses and orders, with mammals alone having about 5,000 species classified into three subclasses and about 26 orders.
Invertebrates are revisited, with a focus on the five main phyla, using the mnemonic 'Auntie Anne makes nice cakes' to aid memory.
The video concludes by summarizing that the animal kingdom is divided into over 30 phyla, with the main five being Arthropoda, Annelida, Mollusca, Nematoda, and Chordata.
The phylum Chordata is emphasized as including all vertebrates, which are further classified into various classes.
Transcripts
all living things are grouped into five
kingdoms and in this video we're going
to look at the animal kingdom in more
detail before we start you may want to
watch our video on classifying organisms
first to remind yourself of Kingdom
filler class or family genus and
species there are thought to be over 7.5
million species of animal on planet
Earth of which 900,000 have been
described these are arranged into over
30 filler of which these are the nine
most
common and these five are the five main
animal
filler arthropods anelids mollusk
nematodes and cord make up a rhyme or
acronym to help you remember them Auntie
Anne makes nice cakes a a m n
c a big question to ask is do they have
a backbone if yes they are a vertebrate
if no they are an
invertebrate this can be tricky to
remember I always think of no backbone
is longer to say than backbone so no
backbone must be invertebrate and
backbone is just a
vertebrate all of these are
invertebrates and just these here the
Cordata contain all of the vertebrates
not all Cordes are vertebrates but all
vertebrates are
cordate let's have a look at the
vertebrates in more
detail there are many different classes
of vertebrate but the five most
well-known ones are the fish Birds
amphibians mammals and
reptiles again make up a little acum to
help you remember fmer Bob ate Mite
rolls each class has different
characteristics that defines them like
mammals which have fur or hair feed
their young on milk and are warm
blooded pause the video and have a look
at what the difference is for each of
these five common vertebrae
claes sometimes people aren't too sure
whether something is a reptile or an
amphibian reptiles have scaly skin
breathe air and usually live on land
except for
turtles I live double lives they start
in the water and breathe gills and as
they grow older they develop
lungs once inside a class so mammals for
example different species are grouped
together in even more detail there are
about 5,000 species of mammals
classified into three subclasses and
about 26
orders so that's the vertebrates now for
the
invertebrates let's go back to our nine
filler
and the five main ones remember Auntie
Anne makes nice cakes let's have a look
at arthropods in a little more detail
they all have a hard exoskeleton and
have jointed legs see how diverse they
are notice how spiders are not insects
but they are a different class of
arthropods altogether called
arachnids and just like in animals these
classes break down even further like for
insects so from this video you should
now know that the animal kingdom breaks
down into over 30 filler with these as
the main
five and then these filler break down
into more detail the Cordata include all
vertebrates which in itself breaks down
into lots of different classes including
these five
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