Worksheets10- How do organisms reproduce -1
Total questions: 15
Worksheet time: 9mins
What is Variation?
Noticeable change in 2 different species
It is the copying during reproduction is important for maintaining the body designs of different organisms to survive in the existing environment.
It refers to the visible difference between two individuals or among a group of individuals or species.
The number of chromosomes in parents and offsprings of a particular species remains constant due to:
(a) Doubling of chromosomes after zygote formation
(b) Halving of chromosomes during gamete formation
(c) Doubling of chromosomes after gamete formation
(d) Halving of chromosomes after gamete formation
An organism capable of reproducing by two asexual reproduction methods one similar to the reproduction in yeast and the other similar to the reproduction in Planaria is:
(a) Spirogyra
(b) Hydra
(c) Bryophyllum
(d) Paramecium
Which out of the following processes does not lead to the formation of clones:
(a) Fertilisation
(b) Fission
(c) Tissue culture
(d) Fragmentation
What process happens when a small root and a plant begin to grows out of a seed?
Cone
Cycle
Flower
Germination
What process happens when pollen falls on a flower's pistil?
Pollination
Pollen
Maturity
Fertilization
Which letter points to the petals?
A
B
C
D
The part of a flower that contains the ovary and the ovule.
Anther
Stamen
Petals
Pistil
The seeds of a flower are produced in the ____________.
Pistil
Ovule
Stamen
Sepal
The _________ cover and protect the flower bud.
Petals
Stamen
Sepals
Anther
1. In a flower, the parts that produce male and female gametes are-
Stamen and anther
Filament and style
Anther and ovary
Stamen and style
1. A feature of reproduction common to amoeba, spirogyra and yeast is
They reproduce asexually
They are unicellular
They reproduce sexually
They are multicellular
1. Vegetative propagation refers to formation of new plants from-
Stem, root, flower
Stem, root, leaves
Stem, fruits, flower
Stem, leaves, flower
1. In Figure, the parts A, B and C are sequentially
cotyledon, plumule and radicle
plumule, radicle and cotyledon
plumule, cotyledon and radicle
radicle, cotyledon and plumule
Offsprings produced by asexual reproduction have greater similarity among themselves because
i. Asexual reproduction involves only one parent
ii. Asexual reproduction does not involve gametes
iii. Asexual reproduction occurs before sexual reproduction
iv. Asexual reproduction occurs after sexual reproduction
i and ii
i and iii
ii and iv
iii and iv
