Ques:If some animals use scent to reproduce, then what purpose do some animals have for scent? Answer choices: - important habitats - exoskeleton - sensory neurons - reproduction - nervous system - Something to move - critical organs - unidirectional

Ans:reproduction
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Ques:If planting trees has a positive impact on habitats, then doing what with trees has a positive impact on habitats? Answer choices: - making tables - chopping down - planting - watershed - earth - bloom time - growth - timbering

Ans:planting
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Ques:If when the immune system recognizes a foreign substance, antibodies are produced, then what happens when the immune system recognizes a foreign substance? Answer choices: - an area swollen with pus - The immune system fails - irradiation - Bacteria dies - Antibodies are formed - major threat to health - Something that causes allergies - Viruses reproduce

Ans:Antibodies are formed
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Ques:If high pressure systems cause pollution to disperse, then what cause pollution to disperse? Answer choices: - low pressure systems - fissures of hot, acidic water - zero pressure systems - fossil fuels - harmful substances - no pressure systems - high pressure systems - Greenhouse gases

Ans:
high pressure systems
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