Select the correct sequence of events:
egg → zygote → embryo → foetus → baby.
egg → embryo → zygote → foetus → baby.
embryo → zygote → egg → foetus → baby.
zygote → egg → embryo → foetus → baby.
The path taken by sperm on ejaculation is ...
epididymis → vas deferens → urethra.
urethra → vas deferens → epididymis.
vas deferens → epididymis → urethra.
epididymis → vas deferens → ureter.
The testes are protected by the ...
Which one of the following statements is not true about testosterone?
Promotes bone development.
Enhances muscle development.
Changes a boy’s voice during puberty.
Promotes sperm maturation.
The period of development of the foetus is called ...
A source of progesterone in the early stages of pregnancy is the ...
Which one of the following structures is not found in a man?
Before copulation, sperm in a man is temporarily stored in the ...
produces fluid to nourish sperm.
In the menstrual cycle, ...
oestrogen level is at its highest on day 14.
progesterone levels are high on day 14.
oestrogen levels are very low on day 14.
progesterone and oestrogen levels are equal.
The mammalian embryo normally develops in the ...
The hypophysis (pituitary gland) secretes ...
Eggs or ova are produced in the ...
Which one of the following statements about the placenta is incorrect ?
It allows maternal and foetal blood to mix.
It produces antibodies to provide passive immunity for the foetus.
It secretes the hormone progesterone.
It secretes the hormone oestrogen.
Identical twins are formed when ...
a zygote separates into two individual cells.
one egg is fertilised by two sperm cells.
two egg cells are fertilised at the same time.
an unfertilised egg cell divides into two.
The correct sequence of events involved in the formation of the foetus is ...
ovulation → fertilisation → implantation.
ovulation → implantation → fertilisation.
fertilisation → ovulation → implantation.
implantation → fertilisation v implantation.
Fertilisation normally takes place in the ...
In which one of the following is it possible for the gender of the twins to be different?
The liquid that surrounds the human embryo is the ...
This is a learning exercise.
You must scroll to the top and examine your incorrect choices, with the view to improving your understanding of this topic. Refer to the Study Guide if necessary.
Questions source: DBE (Authorisation 11798)
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