Biology Mcqs

Production of two types of spores is known as________________?

A. Heterospory
B. Homospory
C. Heterogamy
D. Gamospory

The space between the overtopped dichotomous branches was occupies by a sheet of _________ cells during evolution of megaphyllas?

A. Sclerenchyma
B. Chlorenchyma
C. Parenchyma
D. Collenchyma

Which of the following statement about alternation of generation in bryophytes is incorrect?

A. It involves alternation of morphologically different generations
B. Their gametophyte is independent while sporophyte depends upon gametophyte for nutrition.
C. Both the gametophyte and sporophytes are haploid generations thus can produce haploids gametes to continue the diploid number on fertilization
D. Spore formation occurs through meiosis

The dichotomously branching system has shape similar to________________?

A. U
B. R
C. Y
D. Fork

In bryophytes fertilization takes place in___________?

A. Antheridia
B. Archegonia
C. water
D. Ovule

Horsetails are included in class of____________?

A. Sphenopeida
B. Lycopsida
C. Psilopsida
D. Pteropsida

Of the following which one is not the characteristic of the plants included in psilopsida_____________?

A. Gametophyte is colourless
B. They have mycorrhizal association
C. Rhizoids bear Rhizome
D. Aerial branches have veinless outgrowths

Hornwarts are included in sub-class of __________?

A. Anthoceropsida
B. Bryopsida
C. Hepaticopsida
D. Psilopsida

Today the land habitat is dominated by__________________?

A. Fungi
B. Gymnosperms
C. Angiosperms
D. Tracheophytes

Bryophtes are called amphiabians of plant world because:

A. Bryophytes like amphibian ancestors are one of the most primitive organisms in this world.
B. Bryophytes like amphibian live in damp shady places and close to water body.
C. Amphibians have close relation with bryophytes in their habitat.
D. All of these