You are presented with the question "How many types can viruses infect?" and the following answer choices: - mice - pigs - bird - RNA - ova - tiny - HPV - Two Now knowing that viruses often infect bacteria and bacteria are normally classified as either 'good' bacteria or 'bad' bacteria, choose the best answer.
Two
You are presented with the question "Materials that prevent the flow of heat can be used for keeping what?" and the following answer choices: - airy - power - warm - liquid - dry - energy - empty - down Now knowing that insulated material can be used for keeping warm and insulators are materials that prevent the flow of heat, choose the best answer.
warm
Q: You are presented with the question "What is the study of creatures that live in water biomes?" and the following answer choices: - animals - warm-blooded - marine biology - it needs them - Animal survival - observation - alchemy - animal reproduction Now knowing that organisms that live in marine biomes must be adapted to the salt in the water and marine biology is the study of organisms that happen to be marine, choose the best answer.
A: marine biology
Question: You are presented with the question "what needs contact to smooth over long periods of time?" and the following answer choices: - oxygen - soil - an object - h2o - rivers - quartz - cartilage - bamboo Now knowing that contact between rocks over long periods of time causes rocks to smooth and type of Rocks Salt, quartz and basalt are decent types of aquarium rocks, choose the best answer.
Answer: quartz
*Question*
You are presented with the question "a breathing mask keeps what from being inhaled and causing health problems?" and the following answer choices: - cigarettes - harmful particles - chemical changes - influenza - oxygen particles - hydrogen and oxygen - air particles - atmosphere particles Now knowing that abreathing mask is used for keeping harmful particles from entering the respiratory system and when inhaled, the particles lodge in the respiratory system, causing or aggravating health problems, choose the best answer.
**Answer**
harmful particles
You are presented with the question "Phytoplankton use what to make food?" and the following answer choices: - sun's heat - sunlight beams - refraction of light - heat energy - visible energy - by indirect light - produce light - Positive charges Now knowing that phytoplankton are bacteria and algae that use sunlight to make food and sunlight beams down on the different types of algae, choose the best answer.
sunlight beams