The organisms having characteristics that came into existence earlier are referred to as "primitive" and the organisms having characteristic that have come into existence later on are called, 'advanced'. For example, unicellular prokaryotic bacteria are primitive and multicellular eukaryotic MammaliRead more
The organisms having characteristics that came into existence earlier are referred to as “primitive” and the organisms having characteristic that have come into existence later on are called, ‘advanced’. For example, unicellular prokaryotic bacteria are primitive and multicellular eukaryotic Mammalia are advanced. Likewise, algae are primitive plants and angiosperms are advanced plants. Fishes are primitive vertebrates and birds are advanced vertebrates.
Plants and animals are both eukaryotic organisms. Both are put into different groups on the basis of their mode of nutrition as well as their body designs. Plants are autotrophic and perform photosynthesis whereas animals are heterotrophic and get food from the outside. Plant cells have cell wail (oRead more
Plants and animals are both eukaryotic organisms. Both are put into different groups on the basis of their mode of nutrition as well as their body designs. Plants are autotrophic and perform photosynthesis whereas animals are heterotrophic and get food from the outside. Plant cells have cell wail (of cellulose) whereas animal cells do not have any cell wall.
The more basic characteristic for classifying organisms is - (b) the kind of cells they are made of. It is erroneous to classify organisms on the basis of the place where they livs (such as aquatic, terrestrial, aerial, etc.) because many different kinds of organisms may live in the same habitat butRead more
The more basic characteristic for classifying organisms is – (b) the kind of cells they are made of. It is erroneous to classify organisms on the basis of the place where they livs (such as aquatic, terrestrial, aerial, etc.) because many different kinds of organisms may live in the same habitat but they do not belong to the same group. For example/ sponges, corals, whales, octopuses, starfishes, fishes (sharks), etc., live in sea but they differ with each other.
1. The living organisms vary in size from a few micrometers (e.g., microscopic bacteria) to more than 30 metres long (e.g., blue whale) and more than 100 meters tall (e.g., red wood trees of California). 2. The living organisms vary in longevity from a few days (e,g., mosquitoes) to several thousandRead more
1. The living organisms vary in size from a few micrometers (e.g., microscopic bacteria) to more than 30
metres long (e.g., blue whale) and more than 100 meters tall (e.g., red wood trees of California).
2. The living organisms vary in longevity from a few days (e,g., mosquitoes) to several thousand years e.g. pine trees.
3. The living organisms range from colourless or transparent to brightly coloured birds and flowers.
Which organisms are called primitive and how are they different form so-called advanced organisms?
The organisms having characteristics that came into existence earlier are referred to as "primitive" and the organisms having characteristic that have come into existence later on are called, 'advanced'. For example, unicellular prokaryotic bacteria are primitive and multicellular eukaryotic MammaliRead more
The organisms having characteristics that came into existence earlier are referred to as “primitive” and the organisms having characteristic that have come into existence later on are called, ‘advanced’. For example, unicellular prokaryotic bacteria are primitive and multicellular eukaryotic Mammalia are advanced. Likewise, algae are primitive plants and angiosperms are advanced plants. Fishes are primitive vertebrates and birds are advanced vertebrates.
See lessOn what basis are plants and animals put into different categories?
Plants and animals are both eukaryotic organisms. Both are put into different groups on the basis of their mode of nutrition as well as their body designs. Plants are autotrophic and perform photosynthesis whereas animals are heterotrophic and get food from the outside. Plant cells have cell wail (oRead more
Plants and animals are both eukaryotic organisms. Both are put into different groups on the basis of their mode of nutrition as well as their body designs. Plants are autotrophic and perform photosynthesis whereas animals are heterotrophic and get food from the outside. Plant cells have cell wail (of cellulose) whereas animal cells do not have any cell wall.
See lessWhat is the primary characteristic on which the first division of organism is made?
The primary characteristic used for making the broadest division of organism is that whether the organisms are prokaryotic or eukaryotic.
The primary characteristic used for making the broadest division of organism is that whether the organisms are prokaryotic or eukaryotic.
See lessWhere do you think is more basic characteristic for classifying organism? (a) the place where they live (b) the kind of cells they are made of, why?
The more basic characteristic for classifying organisms is - (b) the kind of cells they are made of. It is erroneous to classify organisms on the basis of the place where they livs (such as aquatic, terrestrial, aerial, etc.) because many different kinds of organisms may live in the same habitat butRead more
The more basic characteristic for classifying organisms is – (b) the kind of cells they are made of. It is erroneous to classify organisms on the basis of the place where they livs (such as aquatic, terrestrial, aerial, etc.) because many different kinds of organisms may live in the same habitat but they do not belong to the same group. For example/ sponges, corals, whales, octopuses, starfishes, fishes (sharks), etc., live in sea but they differ with each other.
See lessGive three examples of the range of variations that you see in life forms around you.
1. The living organisms vary in size from a few micrometers (e.g., microscopic bacteria) to more than 30 metres long (e.g., blue whale) and more than 100 meters tall (e.g., red wood trees of California). 2. The living organisms vary in longevity from a few days (e,g., mosquitoes) to several thousandRead more
1. The living organisms vary in size from a few micrometers (e.g., microscopic bacteria) to more than 30
See lessmetres long (e.g., blue whale) and more than 100 meters tall (e.g., red wood trees of California).
2. The living organisms vary in longevity from a few days (e,g., mosquitoes) to several thousand years e.g. pine trees.
3. The living organisms range from colourless or transparent to brightly coloured birds and flowers.