Biological Classification Test

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Biological Classification Test - 70

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Weekly Quiz Competition

Question 1
1 / -0

Phenomenon of halotism or controlled parasitism is shown by _______.

A
Leguminous roots

B
Lichens

C
Mycorrhiza

D
All of the above

Solution

B. Lichens
Reason: Helotism is a term used for the symbiosis in which on one of the members dominate another such as lichen. Fungus (mycobiont) sends haustoria into algal cells (phycobiont) and induces alga to secrete organic substances and prevent alga to develop pectic covering. It means fungus is a controlled parasite over the alga. Thus, the correlation in lichens are considered as helotism for such king and slavery relation.
So the correct option is B.
Question 2
1 / -0

The sponges belong to

A
Porifera

B
Annelida

C
Arthropoda

D
Echinodermata

Solution

Sponges belong to the group Porifera.
General Characteristics of Porifera are:
1. Multicellular and session.
2. Exclusively aquatic organisms.
3. Cylindrical, asymmetrical /radially symmetrical bodies.
4. Diploblastic organisms.
So, the correct answer is 'Porifera'.
Question 3
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The animals with spiny skin belongs to

A
Porifera

B
Annelida

C
Echinodermata

D
All of the above
Solution
- Spiny skin is the specific characteristic of the phylum echinodermata. The term echinodermata itself means spiny skin.
- Porifera on the other hand have porous skin and annelids have very smooth skin.
- Some characteristics of echinodermata are:
1. Spiny skin.
2. Radial symmetry
3. Exclusively marine.
4. Triploblastic.
So, the correct answer is 'Echinodermata'.
Question 4
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Which of the following called as amphibians of plant group?

A
Algae

B
Mosses

C
Ferns

D
Pine
Solution
- Bryophytes are called amphibians of plant group as they need water for reproduction.
- Mosses are the division of Bryophyta, which are small and non-vascular flowerless plants. So, option B is the correct option.
Question 5
1 / -0

Which of the following worms are categorized as thread worms?

A
Tapeworm

B
Earthworm

C
Roundworm

D
None of the above

Solution

Threadworms are a type of roundworms.
Common characteristics of roundworms that confirm this are:
1. First organisms with organ level classification
2. They are often parasitic
3. Triploblastic
4. Bilaterally symmetrical
So the correct answer is 'Roundworms'.
Question 6
1 / -0

Which of the following phylum are known as pore bearers?

A
Moullsca

B
Porifera

C
Echinodermata

D
All of the above
Solution
Poriferans are multicellular organisms, which are sedentary in nature. They have a cellular level of organization. Most of them are marine, while a few are freshwater forms as well. Porifera are known as pore bearers because they have tiny-sized pores all over their bodies.
Molluscs have smooth skins whereas Echinodermata have spiny skins. These two phylums do not have any pores on their bodies.
Hence, the correct answer is 'Porifera'.
Question 7
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Which of the following characteristic belongs to jellyfish?

A
Radial symmetry

B
Bilateral symmetry

C
Segmented body

D
Unsegmented body

Solution

Jellyfish shows radial symmetry which means it's body is symmetrical when cut through any radial plane.
Bilateral symmetry is when body is symmetrical only through one plane.
Jellyfishes are not classified as segmented or asegmented.
So the correct answer is 'Radial symmetry'.
Question 8
1 / -0

Identify the organism.

A
Centipede

B
Millipede

C
Scorpion

D
Lobster

Solution

Scorpions have only 4 pairs of legs whereas lobsters have 5 pairs of legs.
Centipede has dorsoventrally flattened body and only one leg is present per segment.
Millipedes are semi cylindrical organisms and have 2 legs per segment of their body.
Hence we can see that the image shown is of a millipede as it has the characteristics mentioned above.
So the correct answer is 'Millipede'.
Question 9
1 / -0

Which of the following differentiates mosses from ferns?

A
Presence of roots

B
Absence of roots

C
Production of fruits

D
Presence of flowers

Solution

Ferns have large compound leaves divided into many leaflets. Mosses have no true leaves, just tiny green shoots. The root is absent in case of mosses but present in ferns.
So, option B is the correct option.
Question 10
1 / -0

Which of the following is true regarding reptiles?

A
Spindle-shaped body with scaly skin.

B
Waterproof skin with horny scales.

C
Body covered with hairs.

D
All of the above
Solution
- Body hair is an exclusive feature to mammals.
- Spindle-shaped bodies are present in primarily aquatic animals like pisces for swimming.
- Reptiles have horny scales and not scaly skim like the fishes. Reptiles do have waterproof skin which protects them from injury and water loss.
So the correct answer is 'Waterproof skin with horny scales'.

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Biological Classification Test - 70

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Biological Classification Test - 70

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SHARING IS CARING

Question 1

Leguminous roots

Lichens

Mycorrhiza

All of the above

Solution

Question 2

Porifera

Annelida

Arthropoda

Echinodermata

Solution

Question 3

Porifera

Annelida

Echinodermata

All of the above

Solution

Question 4

Algae

Mosses

Ferns

Pine

Solution

Question 5

Tapeworm

Earthworm

Roundworm

None of the above

Solution

Question 6

Moullsca

Porifera

Echinodermata

All of the above

Solution

Question 7

Radial symmetry

Bilateral symmetry

Segmented body

Unsegmented body

Solution

Question 8

Centipede

Millipede

Scorpion

Lobster

Solution

Question 9

Presence of roots

Absence of roots

Production of fruits

Presence of flowers

Solution

Question 10

Spindle-shaped body with scaly skin.

Waterproof skin with horny scales.

Body covered with hairs.

All of the above

Solution

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