You are presented with the question "what does tobacco harm?" and the following answer choices: - lungs - plants - cancer - cells - tissue - blood - kidney - people Now knowing that smoking tobacco decreases stamina and all smoke is harmful to the lungs, choose the best answer.
lungs
You are presented with the question "What have a complete digestive system and a closed circulatory system?" and the following answer choices: - viruses - reptiles - phytoplankton - mammals - bacteria - graptolites - humans - elephants Now knowing that chordates have a complete digestive system and a closed circulatory system and because reptiles are vertebrates, they are chordates, choose the best answer.
reptiles
Q: You are presented with the question "If you want to use a gasoline engine, what must you do with the gasoline?" and the following answer choices: - drain the gasoline - wash the gasoline - cool down the gasoline - move to different locations - adding heat - ignite the gasoline - vaporization - evaporation Now knowing that using a gasoline engine requires burning gasoline and when the fuel is ignited, it burns with oxygen, choose the best answer.
A: ignite the gasoline
Question: You are presented with the question "What causes food to spoil?" and the following answer choices: - influenza - Dehydration - Pesticides - disease - viruses - Bacteria - toxins - sea squirts Now knowing that microorganisms cause food to spoil and among the threats to food and water safety are microorganisms such as bacteria, choose the best answer.
Answer: Bacteria
*Question*
You are presented with the question "Harming a certain kind of animal will cause the population of that animal to do what?" and the following answer choices: - decrease - eat more - increase - break off - threatened - reproduce - reduce - kill them Now knowing that harming an animal species causes that animal 's population to decrease and species are the different kinds of organisms, choose the best answer.
**Answer**
decrease
*Question*
You are presented with the question "What reduces heat necessary for maximum predatory activity?" and the following answer choices: - Evaporation - energy usage - warming - sweating - fur and fat - eating - tail fins - drinking Now knowing that sweating reduces body heat and high body heat is necessary for maximum predatory activity, choose the best answer.
**Answer**
sweating