The Living World Flashcards

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1
Q

When we try to define ‘living ‘, we conventionally look for distinctive characteristics exhibited by living organisms.

A

Self-consciousness

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2
Q

Does growth can be the defining character of living?

A

No, growth can not be a defining factor of living organisms because non - living things like mountain, boulders and sand mounds do grow by accumulation of material on the surface.

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3
Q

Reproduction is the characteristic of living organisms?

A

No, there are many organisms which do not reproduce (mule,sterile worker Bees,infertile human couples,etc). Hence , reproduction cannot be an all-inclusice defining couples characteristics of living organisms

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4
Q

Metabolism is a defining characteristics of living ?

A

An isolated metabolic reaction outside the body of an organism ,performed in a test tube I’d neither living nor non living . Hence,while metabolism is a defining feature of all living organisms without exception,

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5
Q

The most obvious and technically complicated feature of all living organisms?

A

The ability to sense their surroundings or environment and respond to these environment stimuli physical , chemical or biological.

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6
Q

The number of species that are known and described range between?

A

1.7-1.8 million

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7
Q

What is biodiversity?

A

The number and types of organisms present on 🌎 earth

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8
Q

What is nomenclature?

A

Standardize the naming of living organisms such that a particular organisms is known by the same name all over the world .This is called nomenclature.

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9
Q

Full form of ICBN and ICZN

A

ICBN- International code for botanical nomenclature

ICZN- International code for zoological nomenclature

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10
Q

Who gave Binomial nomenclature ? What are the universally acceptable principles to provide scientific name to known organisms.

A

Binomial nomenclature was given by carlous linnaeus .Each name has two components - Generic name and the specific epithet

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11
Q

Universal rules of nomenclature

A
  1. Biological names are generally in Latin and written in italics.
  2. First word represents the genus while second component denotes the specific epithet.
  3. Separately underlined or printed in italics
  4. First word denotes genus -capital letter . Second letter denotes specific epithet -small letter
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12
Q

What is taxonomy?

A

Based on characteristics ,all living organisms can be classified into different taxa. The process of classification is taxonomy.

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13
Q

Basics of taxonomy.

A

Identification, classification, and nomenclature

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14
Q

What do you understand by the term systematics?

A

Knowing more about different kinds of organisms and their diversities but also the relationships among them. Systematic take into account evolutionary relationships between organisms.

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15
Q

What are taxonomic categories?

A

Overall taxonomic arrangement it is called the taxonomic category

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16
Q

What is taxon ?

A

Each category, referred to as a unit of classification or rank is commonly termed as taxon

17
Q

Taxonomic categories in hierarachial arrangement in ascending order.

A

Species-genus-family-order-class-phylum or division-kingdom

18
Q

What are taxonomical aids?

A

It is used for classification of an organism and the information gathered is also stored with the specimens

19
Q

What is herbarium?

A

It is a store house of collected paint specimens that are dried pressed and preserved

20
Q

Botanical gardens?

A

Specialized gardens have collections of living plants for reference of plant species in these gardens are grown for identification purposes

21
Q

Famous botanical gardens are -

A

Kew ( england),Indian botanical research institute lucknow (India)

22
Q

What is a museum

A

Generally set up in educational institutes such as schools and colleges collection of preserved plants and animals specimens for study and reference. Mammals are usually stuffed and preserved

23
Q

Zoological parks

A

Places where wild animals are kept in protected environments under human care and which enables us to learn about their food habitats and behavior.

24
Q

What is key ?

A

Key is another taxanomical aid for identification of plants and animals based on similarities, based on contacting characters, these are analytical in nature.