Fact 1: If an animal sweats then that animal 's bodily water decreases.  Fact 2: Dogs only sweat from the bottoms of their feet, the only way they can discharge heat is by panting.  Given the two facts above, answer the question "From which part of a dog can bodily water escape?" with the following options:  - Veins and arteries.  - the skin  - aqueous solution  - Endocrine system  - epidermis and dermis  - Pituitary gland  - pituitary  - bottom of feet
bottom of feet

Fact 1: Increasing heat causes thermal expansion.  Fact 2: Motion helps to increase body heat.  Given the two facts above, answer the question "what causes thermal expansion?" with the following options:  - power  - Chimneys  - Sun  - motion  - Energy.  - sunlight  - coal  - energy
motion

Fact 1: Platypus females lay their eggs in a burrow.  Fact 2: Examples of monotremes are the Platypus and Echidna.  Given the two facts above, answer the question "What is the distinguishing feature of monotremes?" with the following options:  - They lay eggs  - the eyes  - Veins and arteries.  - eardrum  - four limbs  - layers of fat  - They have thick fur  - fur and fat

They lay eggs