Classification of organisms?

Question 1

What is taxonomy?

Answer 1

In biology, taxonomy (from Ancient Greek (taxis) ‘arrangement’ and (-nomia) ‘method’) is the scientific study of naming, defining
(circumscribing) and classifying groups of
biological organisms based on shared
characteristics.

Question 2

Who is the father of taxonomy?

Answer 2

Carolus Linnaeus is the father of taxonomy, which is the system of classifying and naming organisms. Oneof his contributions was the development of a hierarchical system of classification of nature. Today,this system includes eight taxa: domain, kingdom, phylum, class, order, family, genus, and species.

Question 3

What is the most accepted modern method of classification?

Answer 3

Phylogenetic classification is the most accepted method
of classification in recent times. It is a system of classification based on evolutionary & genetic
relationships of organisms in addition to natural characters which gives the most accurate sequence of organisms and classification of life.

Question 4

Who is Haeckel?

Answer 4

Then in the 1860s, the German investigator Ernst Haeckel proposed a three-kingdom system of classification. Haeckel’s three kingdoms were Animalia , Plantae, and Protista. Members of the kingdom Protista included the protozoa, fungi, bacteria, and other
microorganisms.

Question 5

Who is robert whittaker?

Answer 5

Scientists classify living things into categories based on their physical and genetic similarities. In the 1960s, American biologist Robert Whittaker proposed a classification system based on five kingdoms: Monera (prokaryotes), Protista, Fungi (molds, yeasts, and mushrooms), Plantae (plants), and Animalia (animals). Whittaker’s system was widely accepted until the 1970s, when further studies led to the division of Monera into two kingdoms—Bacteria and Archaea

Question 6

Who is Carl Woese?

Answer 6

The three-domain system was first introduced by Carl Woese in
1990 that is why its called Carl Woese’s Classification. This classification system also is known as the Six Kingdoms and Three Domains Classification because it divides the life forms into three
domains and six kingdoms.
* The three-domains of Carl Woese’s Classification system include
archaea, bacteria, eukaryote, and six kingdoms are Archaebacteria
(ancient bacteria), Eubacteria (true bacteria), Protista, Fungi, Plantae,
Animalia.

Question 7

What is the scientific name composed of?

Answer 7

1. genus

1.species.

Question 8

What is the kingdom animalia?

Answer 8

• Characteristics of kingdom Animalia:
• They can move and so have locomotion.
• They lack a cell wall and plastids.
• They are heterotrophic since they cannot prepare their own food.
• They have excretory and sensory organs, as well as a neurological system.
• Reproduction is generally sexual.

Question 9

How is the classification of animals divided?

Answer 9

warm blooded vertebrated, cold blooded vertebrates, jointed invertebrates, without legs inverebrates.

Question 10

What is a chordate?

Answer 10

A chordate is a deuterostome bilaterial animal belonging to the phylum Chordata. All chordates possess, at some point during their larval or adult stages, five distinctive physical characteristics that distinguish them from other taxa. These five characteristics are a notochord, a hollow dorsal nerve cord, an endostyle or thyroid, pharyngeal slits, and a post-anal tail.

Question 11

What is the vertebrata?

Answer 11

Vertebrata is the largest and most diverse subphylum of
chordates, with its evolution supported by efficient respiration, advanced nervous system, paired limbs, and the living endoskeleton.

Question 12

What are the five classes?

Answer 12

• Pisces (Fish).
• Amphibia.
• Reptilia.
• Aves.
• Mammalia.

Question 13

What are pisces?

Answer 13

• Characteristics
• They have a streamlined body.
• The circulatory system is of close type.
• The body has three regions- head, trunk, and tail.
• The skeleton can be bony or cartilaginous.
• The sexes are separate.
• A well-developed digestive system is present.
• No extraembryonic membranes.
• Pisces are classified into three categories:
• Placodermi.
• Chondrichthyes.
• Osteichthyes.

Question 14

What are amphibia?

Answer 14

Modern amphibians are united by several unique traits. They typically have a moist skin and rely heavily on cutaneous (skin-surface) respiration.

Question 15

What are reptiles?

Answer 15

These were the first class of organisms to adapt to life on land. They are believed to have evolved from the amphibians millions of years ago. There are about 10000 different species of reptiles on earth. They are cold-blooded animals belonging to the
phylum Chordata of Animal kingdom.
* The skull of the reptiles is modified that gives the reptiles an efficient and powerful jaw
action.

Question 16

What are aves?

Answer 16

Aves is a taxonomic class of birds. The class belongs to the
phylum Chordata (chordates). Some of their common
features: oviparous reproduction, complete double circulation,
wings (modified front limbs), feathers, and beak without teeth

Question 17

What are mammalia?

Answer 17

• Mammals are one of the most evolved species in the animal
  kingdom categorized under vertebrata. They exhibit advanced
  characteristics which set them apart from all other animals. They
  are characterized by the presence of mammary glands through
  which they feed their younger ones.
• Mammals have hair or fur; are warm-blooded; most are born
  alive; the young are fed milk produced by the mother’s mammary
  glands; and they have a more complex brain than other animals.

Question 18

What are the subclasses of mammals?

Answer 18

• there are three subclasses of mammals:
• Prototheria
• Metatheria
• Eutheria (placental)
• there are 19 orders of placentals, most mammals belong to one of
  six orders, of which the largest is the rodents.
• Primates .
• Rodents.