Moisture in plants evaporates

Water evaporates from rivers and dams

Wind blows dust into the air

Plants photosynthesize

Manure fertilises soil

Plants absorb water from the soil through their roots

Erosion occurs through wind

Soil absorbs water

Copulation

Fertilization

Implantation

Umbilical Cord

Placenta

Embryo

Ejaculation

Zygote

G

D

H

A

C

E

B

F

Controls the size of the pupil

Focuses image or object

Outermost transparent layer of the eye, begins focusing process

Transmits information to the brain

Opening to the inner eye

Contains cells that detect light

Cerebrum

Brain stem

Co-ordinates smooth movements

Logical thought processes

Secretes hormones

Interprets sensations

Cerebellum

Transfers nerve impulses from the body to the brain

Pituitary gland

Hind-brain

Reduce friction at joints

Protect the organs

Tough inelastic connections

Protect the end of bones

Strong flexible connections

Produce red blood cells

Connect muscle to bone

Moves the skeleton

Form the structure of the body

Connect bone to bone

Excretes carbon dioxide

Stores urine

Transports purified blood away from the kidney

Filters the blood

G

D

A

C

E

B

F

Urethra

Ureter

Renal artery

Bladder

Renal vein