A fern differ from a moss in prossessing: (a) Swimming/flagellated anitherozoids (b) Flask-shaped archegonia (c) Independent Sporophyte (d) Independent gametophyte

A fern differ from a moss in prossessing: (a) Swimming/flagellated anitherozoids (b) Flask-shaped archegonia (c) Independent Sporophyte (d) Independent gametophyte
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What is common in all the three, Funaria, Dryopteris and Ginkgo? (a) Presence of archegonia (b) Well developed vascular tissues (c) Independent gametophyte (d) Independent sporophyte

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Last Answer : (a) Presence of archegonia

Selaginella and Salvinia are considered to represent a significant step toward evolution of seed habit because (a) female gametophyte is free and gets dispersed like seeds (b) female gametophyte lacks archegonia (c) megaspores possess endosperm and embryo surrounded by seed coat (d) embryo develops in female gametophyte which is retained on parent sporophyte.

Description : Selaginella and Salvinia are considered to represent a significant step toward evolution of seed habit because (a) female gametophyte is free and gets dispersed like seeds (b) female gametophyte ... by seed coat (d) embryo develops in female gametophyte which is retained on parent sporophyte.

Last Answer : (b) female gametophyte lacks archegonia

Pteridophytes differ from mosses/bryophytes in possessing (a) independent gametophyte (b) well developed vascular system (c) archegonia (d) flagellate spermatozoids.

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Last Answer : (b) well developed vascular system

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In a moss the gametophyte stage depends on the sporophyte stage for nutrients.?

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In a moss, the sporophyte (a) manufactures food for itself, as well as for the gametophyte (b) is partially parasitic on the gametophyte(c) produces gametes that give rise to the gametophyte (d) arises from a spore produced from the gametophyte.

Description : In a moss, the sporophyte (a) manufactures food for itself, as well as for the gametophyte (b) is partially parasitic on the gametophyte (c) produces gametes that give rise to the gametophyte (d) arises from a spore produced from the gametophyte.

Last Answer : (b) is partially parasitic on the gametophyte

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When is gametophyte dependent on sporophyte? -Biology

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Are the leafy plants part of the sporophyte or the gametophyte generation?

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Development of saprophyte from gametophyte, is called (a) Apomixis (b) Apospory (c) Apogamy (d) Dip1ospory

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In spite of several angiospermic features Gnetum is a gymnosperm because…. a) polyembryony is a common features b) prothallial cell is present in the male gametophyte c) seed is naked d) stem exhibit anomalous secondary growth

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What is fern ?

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In fern, vascular bundles are: (a) Radial (b) Hadrocentric (c) Open (d) Leptocentric

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Gnetum, when not in flowering can be easily mistaken for a .............. a) tree fern b) dicot plant c) monocot plant d) thalloid plant

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Why is gametophyte dominant in moss? -Biology

Description : Why is gametophyte dominant in moss? -Biology

Last Answer : answer:

Which one has the largest gametophyte? (a) Cycas (b) Angiosperm (c) Selaginella (d) Moss

Description : Which one has the largest gametophyte? (a) Cycas (b) Angiosperm (c) Selaginella (d) Moss

Last Answer : (d) Moss

Slime molds differ from the moldy fungi A- in their mode of nutrition: phagocytosis for the slime molds; absorptive heterotroph for moldy fungi B- in that the moldy fungi produce amoeboid or flagellated cells and the slime molds do not C- Both (a) and (b) D- none of the above

Description : Slime molds differ from the moldy fungi A- in their mode of nutrition: phagocytosis for the slime molds; absorptive heterotroph for moldy fungi B- in that the moldy fungi produce amoeboid or flagellated cells and the slime molds do not C- Both (a) and (b) D- none of the above

Last Answer : in their mode of nutrition: phagocytosis for the slime molds; absorptive heterotroph for moldy fungi

A flask-shaped fleshy recetacle enclosing both the types of flowers is present in

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Pteridophytes differ from bryophytes and thallophytes in having (a) vascular tissues (b) motile antherozoids (c) archegonia (d) alternation of generations

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Pyramid of number in a grassland/true ecosystem is: (a) Always inverted (b) Always upright (c) Both (a) and (b) (d) Spindle-shaped

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The ovule in which embryo sac become horse shoe shaped in: (a) Amphitropous (b) Camphylotropous (c) Orthotropous (d) Anatropous Ans. (a) ......................................................---------------------------......................................................................... BOTANY PRACTICE TEST SAMPLE QUESTIONS 1. Caruncle develops-from: (a) Outer integument (b) Ctyledon (c) Funiculus (d) Inner integuments

Description : The ovule in which embryo sac become horse shoe shaped in: (a) Amphitropous (b) Camphylotropous (c) Orthotropous (d) Anatropous Ans. (a) .................................. ... TEST SAMPLE QUESTIONS 1. Caruncle develops-from: (a) Outer integument (b) Ctyledon (c) Funiculus (d) Inner integuments

Last Answer : Ans. ((a))

Rod-shaped elongated thick-walled lignified dead cells found in seed coat of pulses (Legumes) are (a) Macrosciereids (b) Astrosclereids (c) Brachysclereids (d) Osteosclereids

Description : Rod-shaped elongated thick-walled lignified dead cells found in seed coat of pulses (Legumes) are (a) Macrosciereids (b) Astrosclereids (c) Brachysclereids (d) Osteosclereids

Last Answer : Ans. ((a))

Very long pollen with needle shaped structures are found in

Description : Very long pollen with needle shaped structures are found in

Last Answer : Very long pollen with needle shaped structures are found in – Zostera

Dumbell shaped stomata are found in

Description : Dumbell shaped stomata are found in

Last Answer : Dumbell shaped stomata are found in – Members of family Poaceae

According the Korper Kappe thory the upright T-shaped division is found in

Description : According the Korper Kappe thory the upright T-shaped division is found in

Last Answer : According the Korper Kappe thory the upright T-shaped division is found in – Root cap region

How do angiosperms differ from gymnosperms?

Description : How do angiosperms differ from gymnosperms?

Last Answer : First, the seeds of the angiosperms, a more recently evolved and highly successful division of the tracheophytes, are enclosed within a protective chamber, the ovary. A ripened ovary containing ... support. In conifers, the single xylem elements, the tracheids, represent a more primitive condition 

How do spring wood and autumn wood differ from one another.

Description : How do spring wood and autumn wood differ from one another. 

Last Answer : Ans: Spirng wood has more broad, thin walled tracheary elements and extensive and autumn wood has few, narrow and thick walled tracheary elements in a given annual ring.  

What is cladophyll? How does it differ with Phyloclade?

Description : What is cladophyll? How does it differ with Phyloclade?

Last Answer : Ans: Cladophyll is a green axillary, aerial branch of one or few internodal length arising in the axil of scale leaf. It differs with Phylloclade in being always axillary and showing limited growth.