332171
Evolutionarily, the first terrestrial plants to possess vascular tissues are
1 Gymnosperms
2 Pteridophytes
3 Green algae
4 Bryophytes
Explanation:
Evolutionarily, pteridophytes are the first terrestrial plants to possess vascular tissues – xylem and phloem.
BIOXI03: PLANT KINGDOM
332172
In pteridophytes, spore germinates to give rise to
1 Photosynthetic sporophyte
2 Sporophyte called prothallus
3 Gametophyte called protonema
4 Gametophyte called prothallus
Explanation:
The spores germinate to give rise to inconspicuous, small but multicellular, freeliving, mostly photosynthetic thalloid gametophytes called prothallus.
BIOXI03: PLANT KINGDOM
332173
Selaginella and Salvinia are considered to represent a significant step towards evolution of seed habit because
1 Female gametophyte is free and gets dispersed - like seeds
2 Female gametophyte lacks archegonia
3 Megaspores possess endosperm and embryo sorrunded by coat
4 Embryo develops in female gametophyte which is retained on parent sporophyte
Explanation:
Selaginella and Salvinia produce two kinds of spores: macro and micro spores known as heterosporous. It germinates and gives rise to male and female gametophytes, the female gametes in these plants are retained on the parent sporophytes for variable period. This event is significant step towards evolution of seed habit.
AIPMT - 2011
BIOXI03: PLANT KINGDOM
332174
In Selaginella the embryo develops into
1 Gametophyte
2 Zygote
3 Sporophyte
4 Antheridium
Explanation:
In Pteridophytes, like Selaginella , the zygote develops into embryo and further into a well differentiated sporophyte that acts the main plant body.
332171
Evolutionarily, the first terrestrial plants to possess vascular tissues are
1 Gymnosperms
2 Pteridophytes
3 Green algae
4 Bryophytes
Explanation:
Evolutionarily, pteridophytes are the first terrestrial plants to possess vascular tissues – xylem and phloem.
BIOXI03: PLANT KINGDOM
332172
In pteridophytes, spore germinates to give rise to
1 Photosynthetic sporophyte
2 Sporophyte called prothallus
3 Gametophyte called protonema
4 Gametophyte called prothallus
Explanation:
The spores germinate to give rise to inconspicuous, small but multicellular, freeliving, mostly photosynthetic thalloid gametophytes called prothallus.
BIOXI03: PLANT KINGDOM
332173
Selaginella and Salvinia are considered to represent a significant step towards evolution of seed habit because
1 Female gametophyte is free and gets dispersed - like seeds
2 Female gametophyte lacks archegonia
3 Megaspores possess endosperm and embryo sorrunded by coat
4 Embryo develops in female gametophyte which is retained on parent sporophyte
Explanation:
Selaginella and Salvinia produce two kinds of spores: macro and micro spores known as heterosporous. It germinates and gives rise to male and female gametophytes, the female gametes in these plants are retained on the parent sporophytes for variable period. This event is significant step towards evolution of seed habit.
AIPMT - 2011
BIOXI03: PLANT KINGDOM
332174
In Selaginella the embryo develops into
1 Gametophyte
2 Zygote
3 Sporophyte
4 Antheridium
Explanation:
In Pteridophytes, like Selaginella , the zygote develops into embryo and further into a well differentiated sporophyte that acts the main plant body.
332171
Evolutionarily, the first terrestrial plants to possess vascular tissues are
1 Gymnosperms
2 Pteridophytes
3 Green algae
4 Bryophytes
Explanation:
Evolutionarily, pteridophytes are the first terrestrial plants to possess vascular tissues – xylem and phloem.
BIOXI03: PLANT KINGDOM
332172
In pteridophytes, spore germinates to give rise to
1 Photosynthetic sporophyte
2 Sporophyte called prothallus
3 Gametophyte called protonema
4 Gametophyte called prothallus
Explanation:
The spores germinate to give rise to inconspicuous, small but multicellular, freeliving, mostly photosynthetic thalloid gametophytes called prothallus.
BIOXI03: PLANT KINGDOM
332173
Selaginella and Salvinia are considered to represent a significant step towards evolution of seed habit because
1 Female gametophyte is free and gets dispersed - like seeds
2 Female gametophyte lacks archegonia
3 Megaspores possess endosperm and embryo sorrunded by coat
4 Embryo develops in female gametophyte which is retained on parent sporophyte
Explanation:
Selaginella and Salvinia produce two kinds of spores: macro and micro spores known as heterosporous. It germinates and gives rise to male and female gametophytes, the female gametes in these plants are retained on the parent sporophytes for variable period. This event is significant step towards evolution of seed habit.
AIPMT - 2011
BIOXI03: PLANT KINGDOM
332174
In Selaginella the embryo develops into
1 Gametophyte
2 Zygote
3 Sporophyte
4 Antheridium
Explanation:
In Pteridophytes, like Selaginella , the zygote develops into embryo and further into a well differentiated sporophyte that acts the main plant body.
332171
Evolutionarily, the first terrestrial plants to possess vascular tissues are
1 Gymnosperms
2 Pteridophytes
3 Green algae
4 Bryophytes
Explanation:
Evolutionarily, pteridophytes are the first terrestrial plants to possess vascular tissues – xylem and phloem.
BIOXI03: PLANT KINGDOM
332172
In pteridophytes, spore germinates to give rise to
1 Photosynthetic sporophyte
2 Sporophyte called prothallus
3 Gametophyte called protonema
4 Gametophyte called prothallus
Explanation:
The spores germinate to give rise to inconspicuous, small but multicellular, freeliving, mostly photosynthetic thalloid gametophytes called prothallus.
BIOXI03: PLANT KINGDOM
332173
Selaginella and Salvinia are considered to represent a significant step towards evolution of seed habit because
1 Female gametophyte is free and gets dispersed - like seeds
2 Female gametophyte lacks archegonia
3 Megaspores possess endosperm and embryo sorrunded by coat
4 Embryo develops in female gametophyte which is retained on parent sporophyte
Explanation:
Selaginella and Salvinia produce two kinds of spores: macro and micro spores known as heterosporous. It germinates and gives rise to male and female gametophytes, the female gametes in these plants are retained on the parent sporophytes for variable period. This event is significant step towards evolution of seed habit.
AIPMT - 2011
BIOXI03: PLANT KINGDOM
332174
In Selaginella the embryo develops into
1 Gametophyte
2 Zygote
3 Sporophyte
4 Antheridium
Explanation:
In Pteridophytes, like Selaginella , the zygote develops into embryo and further into a well differentiated sporophyte that acts the main plant body.
