In
the course of its life of organism changes from ……….into an adult.
a) sperm
b) fertilized egg
c) ovum
d) embryo
Explanation: fertilized egg is also known as zygote
The process of conversion from simpler to more complex form is called…….
a) reproduction
b) development
c) respiration
d) gametogenesis
Explanation: the series of progressive, non-repetitive changes that occur during the life history of an organism.
Which of the following is the most obvious change in development?
a) shape
b) size
c) growth
d) height
Explanation: Growth is the irreversible increase of an organism's size over a given period.
Embryonic Development:
The
embryonic development begins with a series of ……… in the zygote.
a) binary fission
b) multiple fission
c) mitotic division
d) meiotic division
Explanation: In mitosis, each cell divides into tow daughter cells with same number of chromosomes
The early mitotic division in zygote is called…….
a) cleavage
b) morulation
c) gastrulation
d) neurolation
Explanation: a series of mitotic divisions whereby the enormous volume of egg cytoplasm is divided into numerous smaller, nucleated cells.
