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Medical Academy named after S.I. Georgievsky
Содержание
- 1. Medical Academy named after S.I. Georgievsky
- 2. BIOLOGYa group of living organisms consisting of
- 3. About 8.7 million (give or take 1.3
- 4. Слайд 4
- 5. Слайд 5
- 6. FOR EXAMPLE:Humans ( Homo sapiens ), moose
- 7. OLDEST LIVING SPECIES:The horseshoe crab, nautilus, jellyfish,
- 8. Are dogs a species?But among dogs, which
- 9. What are the 4 species concepts?The important species
- 10. Слайд 10
- 11. What is the best species concept?The Biological Species
- 12. Слайд 12
- 13. Слайд 13
- 14. Слайд 14
- 15. STRUCTURE OF SPECIES:1. The possible internal structures of
- 16. POLYMORPHISMPolymorphism is the ability of an object to
- 17. Слайд 17
- 18. Слайд 18
- 19. POLYMORPHISM IN LEPIDOPTERA
- 20. Слайд 20
- 21. Скачать презентанцию
BIOLOGYa group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding. The species is the principal natural taxonomic unit, ranking below a genus and denoted by a
Слайды и текст этой презентации
Слайд 1Medical Academy named after S.I. Georgievsky
SPECIES AND ITS CRITERIA
Name:Ramesh Chandra
Kanthan Moses Albert
Слайд 2BIOLOGY
a group of living organisms consisting of similar individuals capable
of exchanging genes or interbreeding. The species is the principal
natural taxonomic unit, ranking below a genus and denoted by a Latin binomial, e.g. Homo sapiens.
Слайд 3About 8.7 million (give or take 1.3 million) is the
new, estimated total number of species on Earth -- the most precise
calculation ever offered -- with 6.5 million species on land and 2.2 million in oceans. Announced by the Census of Marine Life, the figure is based on a new analytical technique.
Слайд 6FOR EXAMPLE:
Humans ( Homo sapiens ), moose ( Alces laces
), black bears ( Ursus americans ), jack pines (
Pinus banksiana ) are all examples of different species.
Слайд 7OLDEST LIVING SPECIES:
The horseshoe crab, nautilus, jellyfish, and sponge may
be some of the oldest living animal species and the Gingko tree
may be the oldest living plant species, but they're far from the oldest things found in the fossil record. Certain groups of bacteria have been around for billions of years.
Слайд 8Are dogs a species?
But among dogs, which are well known
for their hybrid (or mongrel) varieties, different breeds can mate and have
viable offspring, so they are all found under the umbrella of a single species, Canis familiaris. Dogs are highly unusual in their variation, from the Chihuahua to the Great Dane.
Слайд 9What are the 4 species concepts?
The important species concept are:
Typological or
Essentialist Species Concept
Nominalistic Species Concept
Biological Species Concept
Evolutionary Species Concept.
Слайд 11What is the best species concept?
The Biological Species Concept defines a species taxon as
a group of organisms that can successfully interbreed and produce
fertile offspring. According to that concept, a species' integrity is maintained by interbreeding within a species as well as by reproductive barriers between organisms in different species.
Слайд 15STRUCTURE OF SPECIES:
1. The possible internal structures of species-lineages. In general, species consist
of demes or habitat clusters, and comprise clades. A) A
lineage consisting of a bundle of demes that oscillate through the phenotypic/habitat space of an established species but does not fill up the space, as in the other models.
Слайд 16POLYMORPHISM
Polymorphism is the ability of an object to take on many
forms. The most common use of polymorphism in OOP occurs when a
parent class reference is used to refer to a child class object. Any Java object that can pass more than one IS-A test is considered to be polymorphic.
