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Biology

General

Easy

Question

$P i n u s$ belong to the class

Gnetopsida
Cycadopsida
Coniferopsida
Sphenopsida

The correct answer is: Coniferopsida

$P i n u s$ belongs to Coniferopsida. The mature plant is large tree growing upto 30-70 m in height and differentiated into root, stem and leaves. Branches are arranged in acropetal order thus, giving the pyramid or conical shaped appearance to the tree.

Related Questions to study

In gymnosperms, the nucellus is protected by envelops and this composite structure is known as

In gymnosperms, the nucellus is protected by envelops and this composite structure is known as

The bryophytes are fundamentally terrestrial plants but require presence of water to complete their life cycle. The water is needed for
I) dehiscence of antheridia
II) liberation of antherozoids
III) transfer of sperms from antheridia to archegonia
IV) opening of archegonial neck
V) the movement of antherozoids into the archegonial neck
Which of the statements given above are correct?

The bryophytes are fundamentally terrestrial plants but require presence of water to complete their life cycle. The water is needed for
I) dehiscence of antheridia
II) liberation of antherozoids
III) transfer of sperms from antheridia to archegonia
IV) opening of archegonial neck
V) the movement of antherozoids into the archegonial neck
Which of the statements given above are correct?

In which of the following group would you place a plant, which produce seeds but lacks fruits?

In which of the following group would you place a plant, which produce seeds but lacks fruits?

parallel

In …A… gametophytic phase is dominant, while in …B… sporophytic phase in dominant.
Identify the A and B. choose the correct option

In …A… gametophytic phase is dominant, while in …B… sporophytic phase in dominant.
Identify the A and B. choose the correct option

Which of the following part of $F u n a r i a$ sporophyte is involved in the dispersal of spores?

Which of the following part of $F u n a r i a$ sporophyte is involved in the dispersal of spores?

Read carefully the following statement about the sexual reproduction in ferns
I) Water is essential for fertilisation
II) Male gametophyte bears antheridia, while female gametophyte bears archegonium, which produces antherozoids and egg cell, respectively
III) Antherozoids and egg cell fuses to give rise zygote. Zygote develops into young embryo. Embryo give rise to sporophyte
Which of the statements given above are correct?

Read carefully the following statement about the sexual reproduction in ferns
I) Water is essential for fertilisation
II) Male gametophyte bears antheridia, while female gametophyte bears archegonium, which produces antherozoids and egg cell, respectively
III) Antherozoids and egg cell fuses to give rise zygote. Zygote develops into young embryo. Embryo give rise to sporophyte
Which of the statements given above are correct?

parallel

Angiospermic plants are characterised by
I) double fertilisation
II) triploid endosperm
III) Diploid endosperm
Choose the correct option from the following regarding above statements

Angiospermic plants are characterised by
I) double fertilisation
II) triploid endosperm
III) Diploid endosperm
Choose the correct option from the following regarding above statements

Mosses occur in moist place because

Mosses occur in moist place because

Heterocysts are found in

Heterocysts are found in

parallel

Which of the statement is correct about $M a r c h a n t i a$ ?
I) Plant body is thallus-like structures closely attached to substrate
II) Sporophyte is differentiated into food, seta and capsule
III) Gemma cup located on the thalli

Which of the statement is correct about $M a r c h a n t i a$ ?
I) Plant body is thallus-like structures closely attached to substrate
II) Sporophyte is differentiated into food, seta and capsule
III) Gemma cup located on the thalli

Gymnosperms are characterised by

Gymnosperms are characterised by

In $F u n a r i a comma$ stomata are present on the

In $F u n a r i a comma$ stomata are present on the

parallel

Meiosis in $S p i r o g y r a comma blank U l o t h r i x comma blank C h l a m y d o m o n a s$ and most of the algae/thallophytes is

Meiosis in $S p i r o g y r a comma blank U l o t h r i x comma blank C h l a m y d o m o n a s$ and most of the algae/thallophytes is

In pteridophyte, the sporophytes consist of leaf-like appendages called

In pteridophyte, the sporophytes consist of leaf-like appendages called

Which of the following does not belong to class-Phaeophyceae (brown algae)?

Which of the following does not belong to class-Phaeophyceae (brown algae)?

parallel

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