The factors responsible for the rapid spreading of bread mould on slices of bread are (i) presence of large number of spores in air(ii) presence of large number of thread-like branched hyphae(iii) presence of moisture and nutrients (iv) formation of round shaped sporangia
(i) and (iii)
(ii) and (iv)
(i) and (ii)
Name the common method used in plants like jasmine and strawberry for propagation.
Stem cutting
Mound layering
Air layering
Root cutting
Where does fertilization occur?
Oviduct
Uterus
Urethra
Ovary
Which of the following is not a part of female reproductive system in human beings?
Vas deferens
Fallopian tube
The continuity of life on earth, from its origin to the present day, has been possible only because of what?
Reproduction
Respiration
Digestion
None of these
In which animal vivipary is found?
Kangaroo
Frog
Ostrich
Snake
One of the following reproduces by forming spores. This in
Fern
Planaria
Spirogyra
Potato
In which reproduction, no gametes are produced and no fertilization takes place?
Asexual
Sexual
Vegetative
Budding
The adventitious buds are induced before the stem is cut to form a new plant.
Layering
Cutting
Grafting
The protozoan having a flagellum at its one end is
Amoeba
Paramecium
Hydra
Leishmania