Human Reproduction

Question 1

give an example of natural, mechanical and chemical types of contraception

Answer 1

natural: trying to time ovulation and not have intercourse at that time
mechanical: condoms
chemical: the pill

Question 2

name a human female menstrual disorder

Answer 2

endocrine gland failure

Question 3

give a possible cause of endocrine gland failure

Answer 3

if the pituitary gland fails to produce FSH or LH

Question 4

give a method of treatment of endocrine gland failure

Answer 4

the use of hormone supplements

in-vitro fertilisation

Question 5

what is meant by the term “implantation”?

Answer 5

the embedding of the fertilised egg into the endometrium

Question 6

name, in the correct order, the developmental stages from the fertilised egg to implantation

Answer 6

morula

blastocyst

Question 7

embryo cells organise into 3 germ layers

name each of these layers

Answer 7

the ectoderm
the mesoderm
the endoderm