FINALS/ Animal Classification And Anatomical Language Flashcards
It is a system of classifying organisms into increasingly specific groups
Taxonomic hierarchy
Taxonomic hierarchy ( top to bottom)
Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species
Father of modern TAXONOMY. Developed a system of naming, ranking and classifying organisms known as ___
Carl Linnaeus
Binomial nomenclature
Each living thing has a name consisting of two latin words: the ___ and the ___
Genus
Specific epithet
Determine which is genus and species
• Lions scientific name ( Panthera leo)
Genus - Panthera
Species - leo
How human beings are classified based on linnaean classification
• Domain -
• Kingdom -
• Phyum -
• Class -
• Order -
• Family -
• Genus -
• Species -
Eukarya
Animalia
Chordata
Mammalia
Primate
Hominidae
Homo
Sapiens
The groupings of organisms is based on their _____
Shared observable characteristics
Scientist have also been using ___ to know whether a living thing is related to another
Genetic data
A __ also known as ___ is a tool used to identify organisms based on their OBSERVABLE CHARACTERISTICS. It consist of a series of paired statements, each with two possible answersm
Classification key
Dichotomous key
One of the most important factors used to classify animals. By examining an animals ___, scientist can learn about its evolutionary history and relationship to other animals.
Anatomical structures
Body plan
The most basic level of classification
Symmetry
Animals have left and right side that mirror images of each other
Bilaterally symmetrical
Animals have a body plan that can be divided into equal parts along any axis passing through the center
Radially symmetrical
Have no symmetry. These animals are often simple and have limited movement, such as sponges
Assymetrical
The presence or absence of this is Another important anatomical feature used to classify animals
Body cavity
Have no body cavity. These animals are simple and have a sac-like body plan
Acoelomates
Have a false body cavity that is not completely lined by mesoderm
Pesudocoelomates
have a backbone made of bone or
cartilage. This internal skeleton provides support and structure for the body.
Vertebrates
do not have a backbone. They
may have no skeleton at all, or they may have an external skeleton made of chitin or calcium
carbonate.
Invertebrates
The type of ___ of an animal can
also be used for classification.
Skeleton
animals have three germ layers:
the ectoderm, the mesoderm, and the endoderm. These animals are more complex and have well-developed organ systems.
Triploblastic
animals have two germ layers: the
ectoderm and the endoderm. These animals are simple and have limited organ systems.
Diploblastic
Animals can be classified based
on the number of __ layers they have in their bodies.
Tissue layers
body cavity that is completely lined by mesoderm. This type of body cavity provides space for organs and
allows for more complex body plans.
Coelomates
are the most diverse group of
animals.
Coelomates
Animal classification major groups INVERTEBRATES ( 8)
Porifera
Mollusca
Annelida
Echinodermata
Cnidarians
Platyhelminthes
Nematoda
Arthropoda
Vertebrates (7)
Agnatha
Chondrichthyes
Osteichthyes
Amphibia
Reptilia
Aves
Mammalia
