Answer the following question given this paragraph: New species develop naturally through the process of natural selection . Due to natural selection, organisms with traits that better enable them to adapt to their environment will tend to survive and reproduce in greater numbers. Natural selection causes beneficial heritable traits to become more common in a population and unfavorable heritable traits to become less common. For example, a giraffe's neck is beneficial because it allows the giraffe to reach leaves high in trees. Natural selection caused this beneficial trait to become more common than short necks. Q: What is it called when organisms with traits that better enable them to adapt to their environment tend to survive and reproduce in greater numbers? A:
OPTIONS:
- natural distribution
- adaptation
- evolution
- natural selection
natural selection

Answer the following question given this paragraph: Acid rain has severe consequences on both natural and man-made objects. Acid rain degrades marble statues like the one on the left (A). The trees in the forest on the right (B) have been killed by acid rain. Q: What phenomenon has severe consequences on both natural and man-made objects, including killing trees and degrading marble statues? A:
OPTIONS:
- carbon rain
- oxygen rain
- natural rain
- acid rain

Answer: acid rain

Question: Answer the following question given this paragraph: A mantle , or fold of the outer skin lining the shell. The mantle often releases calcium carbonate, which creates an external shell, just like the ones you find on the beach. The shell is made of chitin , a tough, semitransparent substance. Q: What is a fold of the outer skin lining the shell called? A:
OPTIONS:
- marble
- cortex
- stack
- mantle
Answer: mantle

input with options: Answer the following question given this paragraph: In some places, the oceanic crust comes up to a continent. The moving crust pushes that continent away from the ridge axis as well. If the moving oceanic crust reaches a deep sea trench, the crust sinks into the mantle. The creation and destruction of oceanic crust is the reason that continents move. Seafloor spreading is the mechanism that Wegener was looking for!. Q: What happens to the crust if the moving oceanic crust reaches a deep sea trench? A:
OPTIONS:
- ocean volcano
- it cleaves
- forms a continent
- sinks into mantle
output: sinks into mantle

Q: Answer the following question given this paragraph: Connective Tissue Fibers and Ground Substance Three main types of fibers are secreted by fibroblasts: collagen fibers, elastic fibers, and reticular fibers. Collagen fiber is made from fibrous protein subunits linked together to form a long and straight fiber. Collagen fibers, while flexible, have great tensile strength, resist stretching, and give ligaments and tendons their characteristic resilience and strength. These fibers hold connective tissues together, even during the movement of the body. Elastic fiber contains the protein elastin along with lesser amounts of other proteins and glycoproteins. The main property of elastin is that after being stretched or compressed, it will return to its original shape. Elastic fibers are prominent in elastic tissues found in skin and the elastic ligaments of the vertebral column. Reticular fiber is also formed from the same protein subunits as collagen fibers; however, these fibers remain narrow and are arrayed in a branching network. They are found throughout the body, but are most abundant in the reticular tissue of soft organs, such as liver and spleen, where they anchor and provide structural support to the parenchyma (the functional cells, blood vessels, and nerves of the organ). All of these fiber types are embedded in ground substance. Secreted by fibroblasts, ground substance is made of polysaccharides, specifically hyaluronic acid, and proteins. These combine to form a proteoglycan with a protein core and. Q: Collagen fibers, elastic fibers, and reticular fibers comprise what type of tissue? A:

OPTIONS:
- nucleus tissue
- intestine tissue
- skin tissue
- connective tissue

A: connective tissue

Answer the following question given this paragraph: The speed of a gas particle is directly proportional to the temperature of the system. Q: The speed of a particle in what state is directly proportional to the temperature of the system? A:
OPTIONS:
- frozen
- solid
- liquid
- gas
gas