Q: Answer the following question given this paragraph: These brilliant red "feathers" are actually animals called tube worms. They live in an extreme environment on the deep ocean floor, thousands of meters below the water's surface. Their world is always very cold and completely dark. Without sunlight, photosynthesis is not possible. So what do organisms eat at these depths? Tube worms depend on chemosynthetic microorganisms that live inside them for food. In this and other ways, tube worms have adapted to the extreme conditions of their environment. Q: What do tube worms rely on for food? A: | OPTIONS:
- fatty microorganisms
- lentiviruses microorganisms
- sponges microorganisms
- chemosynthetic microorganisms
A: chemosynthetic microorganisms

Q: Answer the following question given this paragraph: Some species of animals are territorial . This means that they defend their area. The area they defend usually contains their nest and enough food for themselves and their offspring. A species is more likely to be territorial if there is not very much food in their area. Animals generally do not defend their territory by fighting. Instead, they are more likely to use display behavior. The behavior tells other animals to stay away. It gets the message across without the need for fighting. Display behavior is generally safer and uses less energy than fighting. Male gorillas use display behavior to defend their territory. They pound on their chests and thump the ground with their hands to warn other male gorillas to keep away from their area. The robin displays his red breast to warn other robins to stay away ( Figure below ). Q: Animals that defend their area are generally known as what kinds of animals? A: | OPTIONS:
- mutants
- neutral
- carnivores
- territorial
A: territorial

Q: Answer the following question given this paragraph: In order to absorb oxygen from the water, fish use gills ( Figure below ). Gills take dissolved oxygen from water as the water flows over the surface of the gill. Q: What part of the body do fish use to absorb oxygen? A: | OPTIONS:
- dorsal fin
- tail fin
- under belly
- gills
A: gills

Q: Answer the following question given this paragraph: Cell division is just one stage of the cell cycle. The cell cycle includes all of the stages in the life of a cell. The cell cycle is more complex in eukaryotic than prokaryotic cells. Q: What stages in the life of a cell does the cell cycle include? A: | OPTIONS:
- adult stages
- intermediate stages
- both
- all
A: all