[Q] What can polar bears do to generate heat?
Options:
- (A) make fire
- (B) eat ice
- (C) stay warm
- (D) nothing
- (E) fur
- (F) motors
- (G) shiver
- (H) sweating
[A] Here's my solution: Mammals can also generate little bursts of heat by shivering. Polar bears are mammals. Polar bears can generate heat by shivering. The answer is (G).

[Q] Where is force on the vessel walls highest?
Options:
- (A) arteries
- (B) feet
- (C) resistance
- (D) tibial vein
- (E) strong
- (F) capillaries
- (G) femoral vein
- (H) Summer
[A] Here's my solution: Blood pressure is highest in arteries and lowest in veins. What is Blood Pressure Blood pressure is the pressure on the blood vessel walls. Force on the vessel walls is highest in arteries and lowest in veins. The answer is (A).

[Q] What do animals do in the winter?
Options:
- (A) Release energy
- (B) running and lifting
- (C) it keeps an organism warm
- (D) adapt to warm weather
- (E) adapt to extreme heat
- (F) adapt to coolness
- (G) shed fur
- (H) by making heat
[A] Here's my solution: Animals adapt to cold temperatures. Temperatures are moderate in summer and COLD in winter. Animals adapt to the coolness in the winter. The answer is (F).

[Q] Epilepsy and splay leg are located on the same what?
Options:
- (A) organ
- (B) Joules
- (C) kalenchoes
- (D) sensory neurons
- (E) chromosome
- (F) nerves
- (G) critical organs
- (H) four limbs
[A]
Here's my solution: Genes that are located on the same chromosome are called linked genes. For example, epilepsy and splay leg tend to link with the vienna white gene. Epilepsy and splay leg are located on the same chromosome. The answer is (E).