plant kingdom

The embryo sac of an angiosperm is made up of

• 8 cells

• 8 nuclei

• 7 cells and 7 nuclei

• 7 cells and 8 nuclei

Holdfast, stipe and frond constitute the plant body in case of

• Rhodophyceae

• Phaeophyceae

• Chlorophyceae

• all of the above

Megasporophylll of gymnosperms is homologous to _____

• Stamen

• Sepal

• Carpel

• Petal

Gymnosperm called as a living fossil is

• Cycas

• ginkgo

• juniperus

• both a and b

Which of the following structure are haploid in gymnosperms?

• Pollen grain, megaspore, embryo

• Pollen grain, megaspore, endosperm

• megaspore, leaf,root

• leaf,root, integument

which of the following statements is incorrect about cycas?

• it has unbranched stem

• it possesses pinnately compound leaves

• it is a dioecious plant

• It is a non-archegoniate plant

In pinus, male strobilus bears a large number of

• Anthers

• stamens

• microsporophylls

• megasporophylls

Seed plants are all

• Heterosporous

• dioecious

• monoecious

• homosporus

The heterosporous pteridophytes are

• Lycopodium and pteris

• selaginella and psilotum

• selaginella and salvinia

• Dryopteris and adiantum

A moss sperm moves by means of

• Pseudopodia

• cilia

• flagella

• any of these