Ques and Ans: Most ecosystems get energy from what in the atmosphere?
Options:
- (A) fires
- (B) Sun
- (C) wind
- (D) summer
- (E) oxygen
- (F) Light
- (G) heat
- (H) H20
(G)
Explanation for the Ans above: [[Most ecosystems get energy from sunlight. On Earth, energy from sunlight heats the atmosphere more at the equator than at the poles. Most ecosystems get energy from heat in the atmosphere.]]

Ques and Ans: What provides protection for soft tissues and internal organs?
Options:
- (A) fur and fat
- (B) eye color
- (C) peachleaf willow
- (D) synapses
- (E) a cuticle
- (F) layers of fat
- (G) nerves
- (H) the skeleton
(H)
Explanation for the Ans above: [[Bone provides protection for soft tissues and internal organs. Bone is the substance that forms the skeleton of the body. The skeleton provides protection for soft tissues and internal organs.]]

Ques and Ans: Plants have specialized tissues for what?
Options:
- (A) reproduction
- (B) muscles
- (C) bone
- (D) important habitats
- (E) health
- (F) food and shelter
- (G) skeleton
- (H) survival
(A)
Explanation for the Ans above:
[[Plants have specialized reproductive organs. Tissues are organized into organs. Plants have specialized reproductive tissues.]]