Logic of a solution: *Producers use energy and inorganic molecules to make food. Leaves make food for the plant. Some producers have leaves to help use energy and inorganic molecules.*
*(A)*
The original question: *Some producers use what physical feature to use energy and inorganic molecules?
Options:
- (A) leaves
- (B) sunlight
- (C) solar energy
- (D) sun
- (E) resevoir
- (F) chemicals
- (G) mitosis
- (H) trees*


Logic of a solution: *Adult tunicates are barrel-shaped. Tunicates differ strongly in appearance between the adult and larva. Tunicates differ strongly in appearance and are barrel shaped.*
*(H)*
The original question: *What differ strongly in appearance and are barrel shaped?
Options:
- (A) bears
- (B) barnacles
- (C) abdomens
- (D) oxen
- (E) Leptospirosis
- (F) cacti
- (G) burrs
- (H) tunicates*


Logic of a solution: *Playing is one way mammals and other animals learn how to behave. Animals are organisms that have ingestive metabolism. Playing is one way organisms that have ingestive metabolism learn how to behave.*
*(F)*
The original question:
*Playing is one way organisms that have ingestive metabolism learn how to what?
Options:
- (A) propagate
- (B) instinct
- (C) grow
- (D) nutrients
- (E) die
- (F) behave
- (G) survive
- (H) Grow well*