On the Basis of characters in group A and group B identify the correct:
$\begin{matrix} G r o u p - A & G r o u p - B (i) L a n d p l a n t & (i) L a n d p l a n t (i i) P l a n t b o d y f o r m s t h a l l u s & (i i) S p o r o p h y t e i s d i v i d e d r o o t, s t e m a n d l e a v e s (i i i) G e m m a c u p s p r e s e n t o n d o r s a l s u r f a c e & (i i i) V a s c u l a r t i s s u e i s p r e s e n t (i v) M u l t i c e l l u l a r s c a l e s a r e p r e s e n t & (i v) F r u i t s a r e a b s e n t (v) G a m e t o p h y t i c p l a n t b o d y & (v) S e e d s a r e p r e s e n t \end{matrix}$

A - Spirogyra, B - Riccia

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A - Cycas, B - Pinus

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A - Marchantia, B - Cycas

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A - Pinus, B - Marchantia

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Solution

The correct option is C
A - Marchantia, B - Cycas

A - Marchantia, B - Cycas

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On the basis of characters in group A and group B identify the correct option

$\begin{matrix} Group -A & Group -B (i) Land plant & (i) Land plant (ii) Plant body forms thallus & (ii) Sporophyte is divided root, stem and leaves (iii) Gemma cups present on dorsal surface & (iii) Vascular tissue is present (iv) Multicellular scales are present & (iv) Fruits are absent (v) Gametophytic plant body & (v) Seeds are present \end{matrix}$

Q. Bryophytes are the first land plants but incompletely adapted to land conditions as
(i) Plant body is parenchymatous.
(ii) Protonema is present.
(iii) Male gametes are mobile.
(iv) Stomata are absent in liverworts.
Which of the above-mentioned statement(s) is/are correct?

Q. Refer to the given dichotomous key and select the correct option regarding it.
I. (a) It is a seedless plant - Go to II
(b) It is a plant having seeds - Go to IIII
II. (a) True stem, leaves and roots are absent -

P

(b) True stem, leaves and roots are present -

Q

III. (a) Fruit is not formed and seeds are naked -

R

(b) Fruits are formed and seeds are protected -

S

Q. Whcih of the following characteristics are related to group to which plant

M a r s i l e a

belongs?(i) Plant body is not differentiated into roots, stem and leaves.(ii) They have specialised tissue for the conduction of water and other substances.(iii) They are predominanty aquatic in nature.(iv) They have naked embryos called spores.(v) They are called amphibians of plant kingdom.

Sr	Characters	Plant group I	Plant group II	Plant group III	Plant group IV
1.	Autotrophic	Yes	Yes	Yes	Yes
2.	Terrestrial	No	Yes	Yes	Yes
3.	Presence of vascular tissue	No	Yes	Yes	No
4.	Flower produced	No	No	Yes	No

Shirin had been on a holiday to Ooty. In her school, she has studied the interesting world of plants. On the day of her return, she collected four groups of plants I, II, III, and IV. She carefully noted some of their details and arranged the information in the form of a table as given below. She asked her teacher how to identify which group is of pteridophytes. Take a look at the data and suggest which of the groups could be of Pteridophytes and why?

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The correct option is C A - Marchantia, B - Cycas A - Marchantia, B - Cycas

The correct option is C
A - Marchantia, B - Cycas

A - Marchantia, B - Cycas