Tag: environmental conservation and biodiversity

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Questions Related to environmental conservation and biodiversity

Multiple choice botany pollination, fertilization and development of endosperm and embryo agents of pollination environmental conservation and biodiversity pollination and fertilization

Read the following matches.

(i) Wild pea Petiolar tendril
(ii) Sweet pea Leaflet tendril
(iii) Gloriosa  superba  Stipular tendril
(iv) Australian Acacia Phyllodes

Which of these are correct?

  1. (ii) and (iii)

  2. (i) and (iv)

  3. (ii), (iii) and (iv)

  4. (ii) and (iv)
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
 Sweetpea (Lathyrus odoratus) Leaflet tendril 
 Australian Acacia  Phyllodes

Gloriosa Superba comes under the category leaf tip tendril rather stipular tendril. Wild pea is not a petiole tendril. Correct matches are :

 
So the correct option is "ii&iv".

Multiple choice botany pollination, fertilization and development of endosperm and embryo agents of pollination environmental conservation and biodiversity pollination and fertilization

Which of the following is ornithophilous?

  1. Erythrina

  2. Agave

  3. Grevillea

  4. All the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Ornithophilous plants are the plants in which flowers are pollinated by means of birds. Examples of Ornithophilous plants are Erythrina, Agave, and Grevillea. As all the options given in the question are of Ornithophilous plants.
So, the correct answer is D.
Multiple choice botany pollination, fertilization and development of endosperm and embryo agents of pollination environmental conservation and biodiversity pollination and fertilization

In most of the angiosperms, pollination predominantly occurs by .............

  1. Air

  2. Water

  3. Insects

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

Pollination is the process of transfer of pollen grain from the anther to stigma. Angiosperm is the flower producing plant that attracts insects for pollination. Insect pollination not only conserves energy for the plant, but insects may play a part in angiosperm diversity. The zoophilous pollen species have adaptations for pollination by generalist insects (39%), specialized pollen-collecting insects (27%) and other specialized pollinators (10%).

Multiple choice botany pollination, fertilization and development of endosperm and embryo agents of pollination environmental conservation and biodiversity pollination and fertilization

Pollination by snail and slug is known as

  1. Ornithophilous

  2. Chiropterophilous

  3. Entomophilous

  4. Malacophilous
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

There are different types of pollination depending upon the agent involved in it. Pollination by bird is known as ornithophilous pollination. Chiropterophilous is a type of pollination in which pollination occurs by bats. Entomophilous is a type of pollination in which pollination occurs by insects. Pollination by snail and slug is known as malacophilous pollination. 

Thus, the correct answer is option D.

Multiple choice botany pollination, fertilization and development of endosperm and embryo agents of pollination environmental conservation and biodiversity pollination and fertilization

Famous ornithologist of India is

  1. Dr. Salim Ali

  2. Gulam Ali

  3. Mohan Ali

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Dr Salim Ali,  "Birdman of India", was the first Indian to conduct systematic bird surveys across India and wrote several bird books that popularized ornithology in India. His best known works are The Book of Indian Birds, Pictorial Guide to the Birds of the Indian Subcontinent and Handbook of the Birds of India and Pakistan (8 volumes), co-authored by Salim Ali and S. Dillon Ripley.
So, the correct option is 'A'.


Multiple choice botany pollination, fertilization and development of endosperm and embryo agents of pollination environmental conservation and biodiversity pollination and fertilization

Chirtopteriphily is pollination by ..................

  1. Insects

  2. Wind

  3. Bats

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

Chiropterophily is pollination of plants by bats. Bat pollination of most common in tropical and desert areas that have many night blooming flowers. Just like bees and birds that pollinate, nectar consuming bats have evolved ways to find and harvest the nectar. Nectar bats have long tongues and can hover like hummingbirds. In turn, the flowers attract bats with their light-coloured petals, large bolossoms, fruity aromas and plentiful nectar.

Multiple choice botany pollination, fertilization and development of endosperm and embryo agents of pollination environmental conservation and biodiversity pollination and fertilization

Which of the following is a characteristics for ornithophily?

  1. Scented flowers

  2. Bright red coloured flowers and inflorescence

  3. White coloured funnel shaped large corolla

  4. Yellow flower with nectaries at the base of the corolla tube
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Ornithophily is pollination by birds, characteristic is presence of colored flowers ( mostly red) with nectaries. The orientation of the stigma and anthers is to facilitate pollen transfer for cross pollination. 
So, the correct answer is 'Yellow flower with nectaries at the base of the corolla tube'
Multiple choice botany pollination, fertilization and development of endosperm and embryo agents of pollination environmental conservation and biodiversity pollination and fertilization

The sausage tree (Kigelia pinnate) is pollinated by 

  1. Bat

  2. Air

  3. Wind

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

Kigelia pinnate is a species belonging to the family Bignoniaceae. It is found in tropical Africa. This is an evergreen tree with pinnate leaves and long drooping inflorescence. It produces bell-shaped flowers in panicles and has a strong scent which is most notable at night. The strong smell attracts the bat which comes for pollen and nectar and thus these are generally pollinated by bats. 

Multiple choice botany pollination, fertilization and development of endosperm and embryo agents of pollination environmental conservation and biodiversity pollination and fertilization

Which of the following terms describes pollination by the agency of ants?

  1. Cheiropterophily

  2. Entomophily

  3. Ornithophily

  4. Myrmecophily
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Pollination is the transferring of pollen grains from the male anther of a flower to the female stigma. Pollination by the agency of ants is called myrmecophily. Pollination by bats, insects and birds are called cleiropterophily, entomophily and ornithophily respectively. 

Multiple choice botany pollination, fertilization and development of endosperm and embryo agents of pollination environmental conservation and biodiversity pollination and fertilization

Some seeds are dispersed by animals ,especially spiny seeds with hooks which get attached to the bodies of animals and are carried to  distant places. Examples is/are -

  1. Xanthium and urena

  2. Xanthium

  3. urena

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

The seeds of the fruits get dispersed by different methods. Xanthium and Urena are the plants in which the fruits produces seeds having structures like spines or hooks. These structures are used for clinging the seeds on the body of the animals and get carried away with them and get dispersed.

Thus, the correct answer is option A.