Biology · Environmental Studies

Forestry and Plant Sciences

985 Questions

Review important biological concepts with these questions on forestry and plant sciences. The topics include non-timber forest products, timber wood types, lichen growth, and tree structures. This content is ideal for students preparing for agriculture and biology exams.

Industrial wood productionLichen growth patternsNon-timber forest productsPapilionaceous timber woodsTree crown typesFast growing trees

Forestry and Plant Sciences Questions

Multiple choice evs animals- nature's gift animal and habitat wonderful world of bholu food material and source

The rearing of animals for specific purposes is called domestication and such animals are called domestic animals. 

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The rearing of animals for specific purposes is called Animal husbandry. This branch concerned with animals that are raised for meat, eggs or other products. 

So the statement is False. 

Multiple choice biology life within the seed developmental journey of seed introduction to plant organs and germination seed to plants

Choose the correct answer from the alternatives given.
A nail was driven into the trunk of a tree at a point 1.5 meters above the soil level. After three years, the nail will

  1. remain where it was

  2. move side ways

  3. move up

  4. move down
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Trees grow in height from the apical meristems located at the tips of branches and the main stem. A nail driven into the trunk will remain at the same height as the tree grows in girth, not in height, at that specific point.

Multiple choice physics sound and noise musical sound and scale pleasant, unpleasant sounds and noise pollution sound noise and pollution

Why Trees are  planted along the roads?

  1. To make the roads beautiful.

  2. To reduce noise pollution.

  3. To provide shade.

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

Trees absorb the sound vibrations produced by various sources and hence leading in prevention of noise pollution. It also provide shades and make the roads beautiful.

Multiple choice physics sound and noise musical sound and scale pleasant, unpleasant sounds and noise pollution sound noise and pollution

Why Trees are  planted along the roads

  1. To make the roads beautiful

  2. To reduce sound

  3. To provide shade

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

Trees are planted along the roads and around buildings so that it could cut off sound vibrations produced from vehicles speakers etc. by absorbing them, hence leading in prevention of Noise pollution.

Multiple choice botany types and parts of plants plant life cycle alternation of generations life span

The leaves which fall down very soon after their formation are

  1. Deciduous

  2. Caducous

  3. Evergreen

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Depending upon the duration of leaf, the plants can be classified into caducous, decidous and evergreen. In evergreen plants, leaves are present in all the seasons and do not shed off combindled. Example includes Pine. In deciduous plants, all the leaves shed at one time. Hence, deciduous plants are without leaves during one season. Example includes Ficus. In caducous plants, leaves shed off as the new bud formation takes place. Example includes rose. In this, the leaves fall down very soon after their formation. Thus, the correct answer is 'Caducous.'

Multiple choice botany types and parts of plants plant life cycle alternation of generations life span

Plants without leaves during one season are ________.

  1. Caducous

  2. Deciduous

  3. Evergreen

  4. Semigreen
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Depending upon the duration of leaf, the plants can be classified into caducous, decidous and evergreen. In evergreen plants, leaves are present in all the seasons and do not shed off combindly. Example includes Pine. In deciduous plants, all the leaves shed at one time. Hence, deciduous plants are without leaves during one season. Example includes Ficus. In caducous plants, leaves shed off during new bud formation. Example includes rose.

Thus, the correct answer is 'Deciduous.'

Multiple choice biology improvement in food resources crop variety improvement improvement if crop varieties improvement in crop variety

.......... is a sterile hybrid which spreads by rhizome division

  1. Iris albicans

  2. Evening primrose

  3. Tangelo

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Hybrid plants can be developed by the breeding of the plants of different species. The parents are genetically different plants. Iris albicans is the sterile hybrid which is developed by breeding of two different species. This is known as interspecific hybridization. This is a sterile plant which spreads by rhizome division.

Thus, the correct answer is option A. 

Multiple choice biology improvement in food resources crop variety improvement improvement if crop varieties improvement in crop variety

Recently there was a controversy regarding the plantation of

  1. Tamarindus

  2. Eucalyptus

  3. Acacia

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Controversy regarding the plantation of Eucalyptus was because of:
Environmental implications of eucalyptus plantations, it has allelopathy on ground vegetation, has a negative impact on biodiversity, exhausts soil from nutrients, has oil in its leaves and accumulated litter leads to forest fire hazards. It also exhausts groundwater and lowers the water table. 
So, the correct answer is 'Eucalyptus'.
Multiple choice geography natural regions climate and natural vegetation equatorial climatic region natural regions of the world

Arboreal means ___________________.

  1. adapted to living on trees.

  2. adapted to living in water.

  3. adapted to living on land.

  4. adapted to living in ice
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The word arboreal originates from the Latin word “arboreus”. It means adapted to living on trees. This word not just refers to animals that live on trees but also to anything that resembles the branching form of a tree. Monkeys that are adapted to live on trees are also called arboreal.

Multiple choice botany plant biology introduction to angiosperms phanerogams angiosperms

The orchid plants, which are found growing on the trees, are

  1. Parasites

  2. Epiphytes

  3. Saprophytes

  4. Lithophytes
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Different types of epiphytes may grow on the same tree, including orchids. The name 'epiphyte' comes from the Greek word 'epi' meaning 'upon' and 'phyton' meaning 'plant'

So, the correct answer is 'Epiphytes'

Multiple choice biology transport in plant transport in the phloem of plants vascular tissue permanent tissue

Which of the following is done during ringing experiment

  1. Bark is removed

  2. Pith is removed

  3. Xylem is removed

  4. All of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In ringing experiment, the bark ring is scraped away which also removes the phloem causing xylem exposure. In this experiment, sugar moves downwards in the stem but the movement is stopped by the ring. As as result sugar bulge forms above the ring. This suggest that sugar transports down in the stem in the phloem.

So the answer is D.

Multiple choice biology transport in plant transport in the phloem of plants vascular tissue permanent tissue

Which one dies first when a ring of bark is removed?

  1. Shoot

  2. Root

  3. None

  4. Both shoot and root die simultaneously
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
The total removal of bark is called girdling, so when the bark is removed the roots will die first as they will starve without the sugar production by the leaves transported down.
So, the correct answer is 'Root'.
Multiple choice biology transport in plant transport in the phloem of plants vascular tissue permanent tissue

The loss of which will harm the tree most

  1. Bark

  2. Half the leaves

  3. Half the branches

  4. All the leaves
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
(A) The loss of bark called girdling will eventually lead to the death of the plant.
(B) Loss of half of the leaves will affect the rate of transpiration and the production of starch.
(C) Loss of half of the branches would not affect plant much.
(D) Loss of all of the leaves will either make the new leaf growth or if the plant is weak it will die.
So, the correct answer is 'Bark'.