question... What continues to grow throughout their lives? 
Options:
- (A) potatoes
- (B) Hemoglobin
- (C) tortoises
- (D) plastic roses.
- (E) Human teeth.
- (F) Lilies.
- (G) Silk daisies.
- (H) vegetation
answer... Most plants continue to grow throughout their lives. Lilies continually produce new bulbs, from which grow new plants. Lilies continue to grow throughout their lives.
The answer is (F)

question... What is one thing most single-celled organisms have in common?
Options:
- (A) Energy
- (B) glucose
- (C) bacteria
- (D) motility
- (E) Energy.
- (F) heat energy
- (G) resistance
- (H) warmth
answer... Most protists have motility. Protists Protists are single-celled organisms. Most single-celled organisms are motile.
The answer is (D)

question... Most of what type of animal is known for having a shell?
Options:
- (A) fossils
- (B) toads
- (C) eggs
- (D) swea
- (E) small
- (F) insects
- (G) porous
- (H) snail
answer...
Most mollusks have shells. Among mollusks, the golden snail is a survivalist. Most snails have shells.
The answer is (H)