Biology, asked by amrit7067, 5 months ago

please help its urgent!!!



》》1 Conifers have several adaptive features to reduce water loss. Which one of the following is incorrect? *



●1 Needle like leaves

●2 thick cuticle

●3 sunken stomata

●4 producing pollen grains

》》2 Find the incorrect match from the following pairs i) Psilopsida - Psilotum, ii) Lycopsida - Lycopodium iii) Sphenopsida - Selaginella iv) Pteropsida - Pteris *

2 points

1 i)

2 ii)

3 iii)

4 iv)

》》3 Which of the following is not a gymnosperm? *


●1 Cycas

●2 Gingko

●3 Pinus

●4 Equisetum

》》4 While most of the algal species are haplontic, which among the following is haplo-diplontic? *



●1 Fucus

●2 Chara

●3 Polysiphonia

●4 Spirogyra

》》5 Which statement bout Gymnosperm is incorrect? *



●1 they bear seeds

●2 they are heterosporous

●3 they bear strobilus / cones

●4 they are insect pollinated

》》6 Study the paired combinations on Classification and find out the incorrect pair: i) Artificial system - based on few characteristics ii) Natural system - natural affinities among organisms iii) Phylogenetic - using computers comparing lot of characteristics iv) Cytotaxonomy- chromosome number, structure etc. *



●1 i)

●2 ii)

●3 iii)

●4 iv)

》》7 Gemma is asexual bud formed in gemma cup. This structure may be found growing in *



●1 Funaria

●2 Sphagnum

●3 Marchantia

●4 None of the above

》》8 Which of the following pairs is a true aquatic fern? *


●1 Azolla, Salvinia

●2 Azolla, Selaginella

●3 Azolla, Lycopodium

●3 Salvinia, Equisetum

》》9 Which of the following is not a Pteridophyte?


●1 Adiantum

●2 Dryopteris

●3 Ginkgo

●4 Psilotum

》》10 Which of the following is not a characteristic of monocot plants? *


●1 one cotyledon

●2 parallel venation

●3 Fibrous root system

●4 petals are 5 or its multiple in number

》》11 After fertilisation which one do not occur in angiosperms? *



●1 Synergids degenerate

●2 Antipodal cells degenerates

●3 Secondary nucleus with male nuclei forms PEN

●4 Zygote develops into endosperm

please Answer its very urgent ...please give correct answer please

Answers

Answered by arjun5369
4

Answer:

1. 1

2. 3

3. 2

4. 1

5. 3

6. 1

7. Marchantia

8. 4

9.Ginkgo

10. 4

11. 1

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