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201.

Asexual phase of fungi is called as ………(a) telomorph (b) holomorph (c) metamorph (d) anamorph

Answer»

(d) anamorph

202.

In which mycelium, the hyphae are arranged loosely? (a) Prosenchyma (b) Plectenchyma(c) Pseudoparenchyrna (d) Arenchyma

Answer»

(a) Prosenchyma

203.

VAM is a type of ……(a) Endomycorrhiza(b) Ectomycorrhiza (c) Ectendomycorrhiza (d) Endectomycorrhiza

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(a) Endomycorrhiza

204.

What is a museum?

Answer»

Museums are places where collections of preserved plant and animal specimens are kept.

205.

What chemical is used to preserve plant and animal specimens in transparent jars at museums?

Answer»

Plant and animal specimens preserved in formalin (10% to 40% formaldehyde) in transparent jars.

206.

Define the following terms: 1. Flora 2. Monograph 3. Manual

Answer»

The different tools used for maintaining biodiversity records are as follows: 

1. Flora: It is the plant life occurring in a particular area at a particular time. 

2. Monograph: It describes any one selected biological group. 

3. Manual: It provides information and keys about identification of species found in a particular area.

207.

Collect information of endemic flora and fauna of India.

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(a) Endemic flora: 

Albizia sikharamensis (Mimosaceae), Argvreia arakuensis (Convolvulaceae), Arundinella setosa (Poaceae), Acacia diadenia (Mimosaceae), Citrus assamensis (Rutaceae), Magnolia bailloni (Magnoliaceae), etc.

(b) Endemic fauna:

Bare Bellied Hedgehog (Paraechinus nudiventris), Andaman Shrew (Crocidura andamanensis), Aruanchal Macaque (Macaca munzala), Car Nicobar Rat (Rattus palmarum), Peter’s Tube-nosed Bat (Harpiola grisea) etc.

208.

Enumerate the living and non – living characters of viruses.

Answer»

Living characters:

1. Presence of nucleic acid and protein. 

2. Capable of mutation. 

3. Ability to multiply within living cells. 

4. Able to infect and cause diseases in living beings. 

5. Show irritability. 6. Host – specific.

Non – living characters:

1. Can be crystallized. 

2. Absence of metabolism. 

3. Inactive outside the host. 

4. Do not show functional autonomy, 

5. Energy producing enzyme system is absent.

209.

Which is a non – living character of viruses? (a) Undergoes mutation (b) Host – specific (c) Crystallized (d) Irritability

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(c) Crystallized

210.

Write the uses:1. Glucose.2. Oxygen

Answer»

1.Glucose: It is used in respiration to release energy for use by the plant’s cells

2.Oxygen: Its major use is in steel production, for example in the Bessemer process.

211.

Some animal names are given below. Write here their organs for movement1. Man2. Eagle3. Kangaroo4. Bat

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1. Man – Walking 

2. Eagle – Swimming 

3. Kangaroo – Crawl – walking 

4. Bat – Flying

212.

Identify them as living or nonliving put (✓) sign in front of the correct choice.

Answer»
Environmental componentsLivingnon-living
Birds
Ballon
Water
Mango tree
Vehicle
Pen

213.

Write the important works they do.

Answer»
OrganismWork
1. Elephant
2. Bullock
3. Dog
Tourism magnets
Transportation
Tracking and Hunting
214.

True or false statements, according to growth:(i) All organisms are small at the time of birth, later acquire definite heigh and weight (ii) Growth takes place rapidly in one or two days –

Answer»

(i) True

(ii) False

215.

True or false statements, according to growth:(i) In environment other organisms get food by reproduction (ii) Reproduction is seen only in animals (iii) There will not be any danger in Environment by over reproduction of a single organism

Answer»

(i) false

(ii) false

(iii) True

216.

Observe the figure. Four important components needed to produce food by the plants are given. which? from what? is given below. Join the statements correctly and write

Answer»
WhichFrom WhatCorrect and write here
1. Solar EnergyGreeb leafSun
2. Water, mineralsAtmosphereSoil
3. Carbon dioxideSunAtmosphere
4. ChlorophyllSoilGreen leaf
217.

Observe the figures below. These are plants which do not prepare food in plant kingdom. They how do they obtain their food?

Answer»

Drosera, Nypenthes, Utrieularia Plants depend on insects for their food. These ar e called insectivorous plants.