286712
Cycas and Adiantum resemble each other in having
1 seeds
2 motile sperms
3 cambium
4 vessels
Explanation:
(b)Cycas (a gymnosperm) and Adiantum (known as Maiden hair fern, a pteridophyte) resemble each other in having motile sperms. Seeds, cambium are common in gymnosperms but absent in pteridophytes. True vessels are absent in both pteridophytes and gymnosperms.
NCERT Page-38 / N-32
PLANT KINGDOM(NCERT)
286713
Fruits are not formed in gymnosperms because of
1 absence of pollination.
2 absence of seed.
3 absence of fertilization.
4 absence of ovule.
Explanation:
(d)The ovules are not enclosed inside the ovary. Instead they are borne naked on the leafy sporophylls, and hence the name gymnosperms (gymnos- naked sperma- seed) is given Double fertilization is absent in gymnosperms.
NCERT Page-38 / N-33
PLANT KINGDOM(NCERT)
286714
___represent the reproductive organs amongst gymnosperms.
1 Prothallus
2 Capsules
3 Setae
4 Cones
Explanation:
(d)In gymnosperms, the reproductive structures are mostly in the form of compact cones except female organs of Cycas. There are two types of sporophylls, usually segregated to form distinct cones or strobili (male and female cones).
286712
Cycas and Adiantum resemble each other in having
1 seeds
2 motile sperms
3 cambium
4 vessels
Explanation:
(b)Cycas (a gymnosperm) and Adiantum (known as Maiden hair fern, a pteridophyte) resemble each other in having motile sperms. Seeds, cambium are common in gymnosperms but absent in pteridophytes. True vessels are absent in both pteridophytes and gymnosperms.
NCERT Page-38 / N-32
PLANT KINGDOM(NCERT)
286713
Fruits are not formed in gymnosperms because of
1 absence of pollination.
2 absence of seed.
3 absence of fertilization.
4 absence of ovule.
Explanation:
(d)The ovules are not enclosed inside the ovary. Instead they are borne naked on the leafy sporophylls, and hence the name gymnosperms (gymnos- naked sperma- seed) is given Double fertilization is absent in gymnosperms.
NCERT Page-38 / N-33
PLANT KINGDOM(NCERT)
286714
___represent the reproductive organs amongst gymnosperms.
1 Prothallus
2 Capsules
3 Setae
4 Cones
Explanation:
(d)In gymnosperms, the reproductive structures are mostly in the form of compact cones except female organs of Cycas. There are two types of sporophylls, usually segregated to form distinct cones or strobili (male and female cones).
286712
Cycas and Adiantum resemble each other in having
1 seeds
2 motile sperms
3 cambium
4 vessels
Explanation:
(b)Cycas (a gymnosperm) and Adiantum (known as Maiden hair fern, a pteridophyte) resemble each other in having motile sperms. Seeds, cambium are common in gymnosperms but absent in pteridophytes. True vessels are absent in both pteridophytes and gymnosperms.
NCERT Page-38 / N-32
PLANT KINGDOM(NCERT)
286713
Fruits are not formed in gymnosperms because of
1 absence of pollination.
2 absence of seed.
3 absence of fertilization.
4 absence of ovule.
Explanation:
(d)The ovules are not enclosed inside the ovary. Instead they are borne naked on the leafy sporophylls, and hence the name gymnosperms (gymnos- naked sperma- seed) is given Double fertilization is absent in gymnosperms.
NCERT Page-38 / N-33
PLANT KINGDOM(NCERT)
286714
___represent the reproductive organs amongst gymnosperms.
1 Prothallus
2 Capsules
3 Setae
4 Cones
Explanation:
(d)In gymnosperms, the reproductive structures are mostly in the form of compact cones except female organs of Cycas. There are two types of sporophylls, usually segregated to form distinct cones or strobili (male and female cones).
