(Question)
If trunk circumference and height in young trees corresponds with the number of rings in the trunk, then what is one thing that rings can tell you? Answer choices: - chemical changes - encoded information - coded genes - age of a woman - age of a tree - age of a lake - it can be seen - size of a tree
(Answer)
age of a tree

(Question)
If expandable stems help many cacti survive in dry environments, then what feature of many cacti help them survive in dry environments? Answer choices: - exoskeleton - Spines for hunting - Expandable stems - an external framework - cactuses - Cooling pipes - genetic diversity - Loud organ pipes
(Answer)
Expandable stems

(Question)
If plants are grown where they are protected from the cold, then plants are grown where they are protected from what? Answer choices: - the sky - disease - storms - cold air - the water - the warmth - sun's heat - the cold
(Answer)
the cold