The Living World Test

Result

The Living World Test - 75

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Weekly Quiz Competition

Question 1
1 / -0

Animals, dogs and mammals represents?

A
Taxa at different levels

B
Taxonomic hierarchy

C
Taxa at equivalent level

D
Categories at equivalent level
Solution
- Each unit or category of classification is termed as a taxon.
- It represents a rank.
- For example, the basic level of classification is species, followed by genus, family, order, class, phylum or division, in ascending order.
- Hence, Animals, dogs and mammals represent Taxa at different levels.
- So, the correct answer is 'Taxa at different levels'.
Question 2
1 / -0

Study of diversity of organisms and evolutionary relationship amongst them on the basis of all possible characters is called as?

A
Taxonomy

B
Systematic

C
Alpha-taxonomy

D
Phylogeny

Solution

Study of diversity of organisms and evolutionary relationship amongst them on the basis of all possible characters is called as systematics.
Question 3
1 / -0

Chemotaxonomy does not deal with

A
Chemical nature of protiens

B
DNA sequences

C
Aromatic compounds found in plants

D
Chromosome number

Solution

Chemotaxonomy is based on similarities and differences in the biochemical composition of plants and animals.
Chemical nature of proteins is universal and same across all organisms. Hence it cannot be used for classification.
Hence DNA sequences, Aromatic compounds, Chromosome numbers are a better method for classification.
So the correct answer is ' Chemical nature of proteins'.
Question 4
1 / -0

Plant classification based on floral characters are preferred because __________________.

A
The floral characters are less affected by environment than vegetative characters

B
flowers are coloured and more attractive

C
Flower can be preserved in herbaria than vegetative parts.

D
Linnaeus classified plants based on flower characters like the number of stamens

Solution

Plant classification based on floral characters are preferred because the floral characters are less affected by environment than the vegetative parts. Also flowers are easier to handle or carry, easy to procure and widely varied
So, the correct answer is 'the floral characters are less affected by environment than the vegetative characters'
Question 5
1 / -0

In the following table the ecological units are mentioned in the first column vertically and their attributes are mentioned horizontally Which of the following options is correct for ecological units with their respective attributed indicated by A to P
Attributes Ecological Age Flow of energy Natality Prefatory prey relationship
I. Individual Organism A B C D
II. Population E F G H
III. Community I J K L
IV. Ecosystem M N O P

A
I-C II-B III-K IV-P

B
I-A II-G III-L IV-N

C
I-C II-A III-K IV-L

D
I-A II-B III-C IV-D

Solution

Ecosystem attributes are focused on habitat characteristics that may affect a species such as its condition, structure, or whether there are support areas present. There are following attributes consider in different units:
Natality is the ratio of a number of birth to the size of the population. It is also known as birth rate.
A predator is an organism that eats another organism. The prey is the organism which the predator eats. Some examples of predator and prey are lion and zebra, bear and fish, and fox and rabbit.
energy flow, also called the calorific flow, refers to the flow of energy through a food chain and is the focus of study in ecological energetics.
So the correct option is 'I-C II-B III-K IV-P'.
Question 6
1 / -0

Which of the following taxonomic aid contain actual account of habitat and distribution of plants of a given area?

A
Flora

B
Manual

C
Monograph

D
Catalogue

Solution

$$\textbf{Correct answer: A}$$

$$\textbf{Option (A):}$$
$$\bullet$$ The world 'flora' refers to all the planes present in a given geographical area.
$$\bullet$$ It contains all the plants present in the habitat with a detailed account of the scientific description and distribution of the plants.

$$\textbf{Option (B):}$$
$$\bullet$$ Manual holds the key to determining specific plants and animals using the taxonomic aid and characterizing them.

$$\textbf{Option (C):}$$
$$\bullet$$ A detailed study of an organism or its related taxonomic group is called a monograph.

$$\textbf{Option (D):}$$
$$\bullet$$ A booklet containing the list of characters for a specific taxonomic category is known as a catalogue.

Hence, the correct answer is option (A).
Question 7
1 / -0

Refer to the given dichotomous key and select the correct option:
I.(a) The plant bears complete flowers -Go to II
(b) The plant bears incomplete flowers - Go to III
I.(a) Plant undergoes self pollination - $$P$$
(b) Plant undergoes cross-pollination - Go to IV
III.(a) Plant undergoes wind pollination -$$Q$$
(b) Plant undergoes insect pollinations $$R$$
IV. (a) Plant undergoes water pollination -S
(b) Plant undergoes bat pollination -$$T$$

A
P could be Commelina whereas S could be sunflower

B
R could be papaya whereas T could be rose

C
Q could be barley where as S could be date palm

D
R could be orchid where as S could be zostera.

Solution

By the description given in the question, it is clear that S undergoes water pollination so it has to be an aquatic plant and Zostera is an aquatic plant. Butterflies( insects ) are main pollinating agents in rose.
So, the correct option is option D.
Question 8
1 / -0

Choose the correct statements from following:
A. Taxonomic hierarchy include seven obligation categories.
B. Haeckel introduced the taxon phylum.
C. Three-domain classification was introduced Carl Woese.

A
A & B

B
B & C

C
A & C

D
All

Solution

C. A & C
Solution : Haeckel introduced Monera first into the phylum. Taxonomic hierarchy includes seven obligate categories and Carl Woese proposed the 3 domain classification.
So the correct answer is "A & C".
Question 9
1 / -0

Which one of the following criteria is/are essential and form the basis of classical taxonomic studies?

A
Ecological information of organisms

B
Development process

C
External and internal structure

D
External structure
Solution
- The classical taxonomy is based on few observable morphological characters like the presence or absence of hard shells or the presence of wings etc.
- Modern taxonomic studies are based on the development process and ecological information of organisms along with external and internal structures.
So, the correct answer is option D.
Question 10
1 / -0

To which of the following phylum, class trematode belongs?

A
Platyhelminthes

B
Arthropoda

C
Mollusca

D
None of the above

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Attributes Ecological	Age	Flow of energy	Natality	Prefatory prey relationship
I. Individual Organism	A	B	C	D
II. Population	E	F	G	H
III. Community	I	J	K	L
IV. Ecosystem	M	N	O	P

The Living World Test - 75

Result

The Living World Test - 75

Score

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Rank

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SHARING IS CARING

Question 1

Taxa at different levels

Taxonomic hierarchy

Taxa at equivalent level

Categories at equivalent level

Solution

Question 2

Taxonomy

Systematic

Alpha-taxonomy

Phylogeny

Solution

Question 3

Chemical nature of protiens

DNA sequences

Aromatic compounds found in plants

Chromosome number

Solution

Question 4

The floral characters are less affected by environment than vegetative characters

flowers are coloured and more attractive

Flower can be preserved in herbaria than vegetative parts.

Linnaeus classified plants based on flower characters like the number of stamens

Solution

Question 5

I-C II-B III-K IV-P

I-A II-G III-L IV-N

I-C II-A III-K IV-L

I-A II-B III-C IV-D

Solution

Question 6

Flora

Manual

Monograph

Catalogue

Solution

Question 7

P could be Commelina whereas S could be sunflower

R could be papaya whereas T could be rose

Q could be barley where as S could be date palm

R could be orchid where as S could be zostera.

Solution

Question 8

A & B

B & C

A & C

All

Solution

Question 9

Ecological information of organisms

Development process

External and internal structure

External structure

Solution

Question 10

Platyhelminthes

Arthropoda

Mollusca

None of the above

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