hr Flashcards
1
Q
HIV
A
Human immunodeficiency virus
2
Q
adaptive features of sperm
A
has a flagellum (tail)
contains enzymes in the acrosome in the head like structure
these enzymes break down the jelly-coating surrounding the egg
3
Q
adaptive feature of egg
A
contains jell like coating that changes after being fertilised by a sperm
cytoplasm contains store of energy that divides zygote after fertilisation
4
Q
types of wbc
A
phagocytes and lymphocytes
5
Q
lymphocytes
A
HIV host cell
antibodies
- bing to surface of pathogen
antitoxins
- produced by lymphocytes
- clump pathogens together after identifying them
6
Q
Fertilisation
A
fusion of nuclei of male and female gametes
7
Q
How is embryo formed
A
in early development zygote forms embryo
8
Q
embryo
A
ball of cells that implant into wall of uterus
