Tag: adaptation in plants

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Multiple choice biology adaptation plant adaptation adaptation in plants plant habitat

Flying animal are known as

  1. Arboreal

  2. Fossorial

  3. Volant

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

A number of animals have evolved aerial locomotion either by powered flight or by gliding. Animal that fly is a volant. Volant animals constitute a very interesting and highly specialized group of vertebrates. They have undergone extensive adaptive radiations and have beautifully modified their body to lead a perfect aerial life.

So, the correct answer is 'Volant'.

Multiple choice biology adaptation plant adaptation adaptation in plants plant habitat

Besides pneumatic bones, another useful flight adaptation in birds is

  1. Syrinx

  2. Pygostyle

  3. Furcula

  4. Quill feathers
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Besides pneumatic bones, another useful flight adaptation in birds is quill feathers. Each quill feather has a central stem or scapus. It is divided into a lower hollow part called the quill or calamus and a solid upper part termed rachis. Small filaments or barbs are attached to rachis. The barbs remain attached with one another to form a continuous blade for striking the air in flight.
So, the correct answer is 'Quill feathers'.
Multiple choice biology adaptation plant adaptation adaptation in plants plant habitat

State whether the following statements are true or false.
The adaptations for flight are called fossorial adaptations

  1. True

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

The adaptations for flight are called aerial adaptations. Many of a bird's bones are hollow which makes birds' bodies lightweight. Flying birds have large chest muscles that move the wings. Birds have feathers that help them fly. Fossorial adaptations are for those animals, which primarily live underground.

So, the correct option is 'False'.

Multiple choice botany taxonomy and systematic botany importance and classification of angiosperms plant adaptation adaptation in plants uses of angiosperms classification of angiosperms

One of the following is a social foresting species with multiple utility 

  1. Mangifera indica (Mango)

  2. Leucaena leucocephala (Subabul)

  3. Borassus flabelliformis (Palmyrah palm)

  4. Rosa grandiflora (Rose)
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Leucaena leucocephala (Subabul) is a social foresting species with multiple utility like green manure, biomass production, food for humans, pulpwood for paper industry.

Multiple choice botany taxonomy and systematic botany importance and classification of angiosperms plant adaptation adaptation in plants uses of angiosperms classification of angiosperms

Among the plants listed, point out which one does not fit into ecological group represented by other plants 

  1. Acacia

  2. Rhizophora / Vallisneria

  3. Euphorbia

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

Acacia, Aloe, Euphorbia are xerophytes plants while Vallisneria is hydrophyte and Rhizophora belongs to the halophyte plant group.

Multiple choice botany taxonomy and systematic botany importance and classification of angiosperms plant adaptation adaptation in plants uses of angiosperms classification of angiosperms

Development of microsporangium in angiosperms and gymnosperms is of.

  1. Eusporangiate type

  2. Leptosporangiate type

  3. Monosporic type

  4. Tetrasporic type
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In angiosperms and gymnosperms, the microsporangium develops from a group of archesporial cells, which is characteristic of the eusporangiate type of development.

Multiple choice botany taxonomy and systematic botany importance and classification of angiosperms plant adaptation adaptation in plants uses of angiosperms classification of angiosperms

In angiosperms normally after fertilization.

  1. The zygote divides earlier than the primary endosperm nucleus

  2. The primary endosperm nucleus divides earlier than the zygote

  3. Both the zygote and primary endosperm nuclei divide simultaneously

  4. Both the zygote and primary endosperm nuclei undergo a resting period
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In angiosperms, the primary endosperm nucleus (PEN) typically divides prior to the division of the zygote. This ensures that the nutritive endosperm tissue is established early to support the subsequent development of the embryo from the zygote.

Multiple choice botany taxonomy and systematic botany importance and classification of angiosperms plant adaptation adaptation in plants uses of angiosperms classification of angiosperms

Which one of the following statements is correct?

  1. In the wood of dicots, ray tracheids are absent

  2. In the wood of gymnosperms, ray parenchyma is absent

  3. In most commercially important dicot woods, fibers are absent

  4. In the wood of all gymnosperms, vessels are absent
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Gymnosperm wood is generally composed of tracheids and lacks vessels. Ray tracheids are often found in gymnosperms but are absent in most dicot woods.