Indicate whether the following statements are True (T) or False (F):
(a) Oviparous animals give birth to young ones. ( )
View answer
False
Viviparous Animals give birth to young ones.
Oviparous animals lay eggs first.
(b) Each sperm is a single cell. (T/F)
View answer
True
Each sperm is single cell with all the cell components
(c) External fertilization takes place in frog. (T/F)
View answer
True.
In frogs, fertilization takes place in the water where they live. Since fertilisation takes place outside the female body, it is external fertilisation.
(d) A new human individual develops from a cell called gamete. (T/F)
View answer
False
Sex cells of male and female are known as Gamete. New human develops from zygote - which is formed by the fusion of male and female gametes
(e) Egg laid after fertilization is made up of a single cell. (T/F)
View answer
True
In fertilisation, the nuclei of the sperm and the egg fuse to form a fertilised egg cell known as Zygote. This Zygote is a single cell
(f) Amoeba reproduces by budding. (T/F)
View answer
False
Amoeba reproduces by binary fission
(g) Fertilization is necessary even in asexual reproduction. (T/F)
View answer
False
Fertilisation is necessary in only sexual reproduction
(h) Binary fission is a method of asexual reproduction. (T/F)
View answer
True
(i) A zygote is formed as a result of fertilization. (T/F)
View answer
True
Zygote is formed from fusion of Male and Female Gametes, which happens after fertilisation
(j) An embryo is made up of a single cell. (T/F)
View answer
False
Zygote divides itself repeatedly to make a ball of hundreds of cells. This ball is called embryo. Embryo is multicellular