Biology · Science General

Diversity in Living Organisms

3,323 Questions

The diversity in living organisms deals with the classification of life forms into various kingdoms and phyla. This topic covers specific traits of bacteria, animal body cavities, and structural adaptations for survival. These fundamentals are crucial for biology sections in medical entrance and state board exams.

Animal phyla characteristicsBacteria and flagellaBiological adaptationsKingdom Animalia classificationBody cavity typesExtinct organism subphylaJawless animals identification

Diversity in Living Organisms Questions

Multiple choice zoology animal diversity - i (inverterbrate phyla) ctenophora phylum ctenophora cnidaria

Ctenophores have similarities with members of

  1. Porifera

  2. Coelenterata

  3. Arthropoda

  4. Annelida
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Ctenophores share the most similarities with Coelenterates which include Biradial symmetry, simple organisation, oral-aboral axis arrangement, branched coelenteron and presence of mesoglea
So, the correct answer is 'Coelenterata'
Multiple choice zoology animal diversity - i (inverterbrate phyla) ctenophora phylum ctenophora cnidaria

Comb plates of ctenophores possess

  1. Cilia for locomotion

  2. Cilia for filter feeding

  3. Teeth for crushing

  4. Teeth for filtering
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The tentacles of Ctenophores have meridonial bands with transversely arranged combs like structures. Comb-like eight ciliary plates on the body serve the purpose of locomotion. 

So, the correct answer is 'Cilia for locomotion'.

Multiple choice zoology animal diversity - i (inverterbrate phyla) ctenophora phylum ctenophora cnidaria

Tentacles of ctenophores contain

  1. Cnidoblasts

  2. Colloblasts

  3. Digestive glands

  4. All of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ctenophores use their tentacles to capture their prey and these tentacles are made of specialized cells called colloblast. These colloblast are made of axial filaments and a granular sticky dome.

So. the correct answer is 'Colloblasts'.

Multiple choice zoology animal diversity - i (inverterbrate phyla) ctenophora phylum ctenophora cnidaria

Select the correct one(s) for Ctenophora -

  1. They have similarities with Cnidaria

  2. They have 8 external rows of ciliated comb plates for locomotion

  3. Bioluminescene

  4. All
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Ctenophores, variously known as comb jellies, sea gooseberries, sea walnuts, or Venus's girdles, are voracious predators. Unlike cnidarians, with which they share several superficial similarities, they lack stinging cells. They have ciliated comb plates for locomotion and exhibit bioluminescence
So, the correct option is 'All'
Multiple choice zoology animal diversity - i (inverterbrate phyla) ctenophora phylum ctenophora cnidaria

Comb jelles or sea walnuts are placed under -

  1. Cnidaria

  2. Ctenophora

  3. Echinodermata

  4. Annelida
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Ctenophores, variously known as comb jellies, sea gooseberries, sea walnuts, or Venus's girdles, are voracious predators. Unlike cnidarians, with which they share several superficial similarities, they lack stinging cells.
So, the correct option is 'Ctenophora'
Multiple choice zoology animal diversity - i (inverterbrate phyla) ctenophora phylum ctenophora cnidaria

Biradial symmetry and lack of cnidoblasts are the characteristics of-

  1. Starfish and sea anemone

  2. Ctenoplana and Beroe

  3. Aurelia and Paramecium

  4. Hydra and starfish
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Ctenoplana and Beroe lack cnidobiasts and have brradial symmetry. These belong to phylum-Ctenophora. Hydra, sea anemone and Aurelia are coelenterates which have cnidoblasts. Although sea anemone has biradial symmetry.

So, the correct answer is 'Ctenoplana and Beroe'.
Multiple choice zoology animal diversity - i (inverterbrate phyla) ctenophora phylum ctenophora cnidaria

Presence of comb plates is characteristic feature of

  1. Porifera

  2. Cnidaria

  3. Ctenophora

  4. Platyhelminthes

  5. Annelida
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Ctenophores are commonly known as sea whales or comb jellies, radially symmetry, diploblastic organisms with tissue level of organization. The body bears eight external rows of ciliated comb plates which help in locomotion, hence the name Ctenophora. Cnidocytes are absent.

So the correct answer is 'Ctenophora'.

Multiple choice zoology animal diversity - i (inverterbrate phyla) ctenophora phylum ctenophora cnidaria

Which of the following is not a characteristic of phylum Ctenophora?

  1. They are exclusively marine, radially symmetrical animals

  2. They move by cilia, which join together to form eight median comb plates

  3. When the tentacles are present they are two in number and contain cnidoblasts

  4. Reproduction takes place only by sexual means
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Ctenophores are exclusively marine, radially symmetrical animals with comb plates for locomotion. However, they lack cnidoblasts or stinging cells, which are instead characteristic of phylum Cnidaria.

Multiple choice general knowledge resources of india and world animal husbandry and fishery green and white revolution agriculture in indian economy

Polar bears are carnivores and prey on many arctic birds and fish. However, under natural conditions, no one found polar bears predating any penguin. This is because ___________.

  1. penguins have chemical substance in their muscles which is toxic to polar bears.

  2. penguins are gregarious and always move in groups. Therefore, a polar bear cannot approach them.

  3. polar bears and penguins never coexist under natural conditions. The former lives in the North Pole while the latter lives in the South Pole.

  4. polar bears and penguins display symbiotic relationships and they help each other for their existence in the ice-cold ecosystem.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Polar bears inhabit the Arctic (North Pole), while penguins are native to the Southern Hemisphere (mostly Antarctica). They do not coexist in the wild.

Multiple choice general knowledge resources of india and world animal husbandry and fishery green and white revolution agriculture in indian economy

Living things are grouped into subgroups like plant kingdom/animal kingdom. Which one of the following is not correct for animal kingdom?

  1. Cannot make their own food

  2. Body contains cellulose

  3. Do not have chlorophyll

  4. Migrate from one place to another
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Animals do not have cell walls, and therefore their bodies do not contain cellulose. Cellulose is a structural component found in plant cell walls.

Multiple choice biology the world of microbes protista protozoa five kingdoms of living organisms

To which kingdom Amoeba and Euglena belong in Whittaker's classification?

  1. Monera

  2. Plantae

  3. Protista

  4. Animalia
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The five kingdom classification was proposed by R.H. Whittaker in 1969. The five kingdoms were formed on the basis of characteristics such as cell structure, mode of nutrition, the source of nutrition and body organization. It includes Kingdom Monera,  Protista, Fungi, Plantae, and Animalia. According to Whittaker's 5 kingdom classification, unicellular eukaryotes belong to kingdom Protista. Amoeba and euglena are unicellular eukaryotic organisms so they belong to kingdom Protista.

So, the correct answer is 'Protista'.

Multiple choice biology the world of microbes protista protozoa five kingdoms of living organisms

Which do not belong to Protista?

  1. Euglenoids

  2. Zooflagellates

  3. Methanogens

  4. Ciliates
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Unicellular, eukaryotic organisms belongs to the kingdom protista. It includes, chrysophytes, dinoflagellates, protozoans, euglenoids, myxomycetis.
Methanogens are unicellular prokaryotes, belongs to the kingdom monera.
So, the correct option is 'Methanogens'.