Frozen Frogs/Long live the Tree

The author wrote this selection most likely to explain- 

• the reasons scientists have been unsuccessful at freezing organs
• how the wood frog survives in harsh conditions
• how wood frogs hibernate or migrate to warmer climates
• the scientific studies that involve wood forgs

In paragraph 2, the word vital means-

• fortunate
• common
• necesary
• permanent

What can the reader conclude about wood frogs from learning that they hop away after thawing out?

• Wood frogs are not truly frozen during winter months.
• Wood frogs have a special process for storing energy.
• Wood frogs have a unique ability to know the temperature.
• Wood frogs are not harmed by the body-freezing process. 

Which of these ideas is supported by information in paragraph 5 and 6?

• Water helps the wood frog thaw its limbs. 
• The temperature of its surroundings determines how long a wood frog stays frozen. 
• The time it takes for a wood frog to thaw is equal to the time it takes for the frog to freeze.
• The wood frog thaws faster than its surroundings.

The diagram of the wood frog helps the reader understand-

• which features can be used to identify a wood frog
• which characteristics make wood frogs able to freeze
• which temperature the wood frogs are able to survive in
• which studies involving wood frogs have been performed

The reader can infer that the long life span of bristlecone pines is mainly a result of -

• their location in the Great Basin 
• their root systems and outer wood
• the actions of park rangers
• the soil of the White Mountains

Which words from paragraph 2 help the reader understand the meaning of thrive?

• contains little water 
• can damage 
• battered by strong winds 
• grow well

What is the main idea about bristlecone pine trees presented in the selection?

• They are found in mountains areas.
• They are able to adapt to extremely harsh conditions.
• They are protected by park rules. 
• They provide scientific clues about their environment. 

The information in paragraph 4 helps explain why -

• many bristlecones are found in the White Mountains
• droughts in the White Mountains can affect the bristlecones
• some bristlecones can allow a part of themselves to die 
• insects succeed in getting through the thick bark of bristlecones

The bar graph included with the selection helps the reader better understand - 

• the factors that allow the bristlecone to live for so long
• that the life spans of trees can vary greatly
• why some regions produce trees that live as long as the bristlecones 
• that other trees live in an environment similar to that of the bristlecone