Practice every past-year question.

1. A
   Melanin
2. B
   Haemoglobin
3. C
   Ossein
4. D
   Insulin

Tap an option to check your answer.

1. A
   Endangered
2. B
   Rare
3. C
   Vulnerable
4. D
   Indeterminate

Tap an option to check your answer.

1. A
   Mammalia
2. B
   Amphibia
3. C
   Reptilia
4. D
   Cyclostomata

Tap an option to check your answer.

1. A
   Skin
2. B
   Heart
3. C
   Lungs
4. D
   Bones

Tap an option to check your answer.

1. A
   Social
2. B
   Political
3. C
   Biological
4. D
   Geological

Tap an option to check your answer.