Look at the Diagram Below

Look at the Diagram Below

  1. Look at the diagram below:

Based on your knowledge of how the sun’s energy flows through food chains and food webs, which living things belong in the spaces labeled “X”, “Y”, and “Z”?

  1. Compounds are formed from the combination of two or more elements. Some compounds are inorganic, while other compounds are organic. Which of the following compounds is an organic compound?
  1. Sodium chloride (NaCl)
  2. Methane (CH4)
  3. Water (H2O)
  4. Hydrogen chloride (HCl)
  1. The digestion process begins when you begin to chew food. Chewing food cuts and grinds food into smaller pieces so that it is more easily swallowed. During chewing, your mouth releases saliva which contains enzymes to turn the food into a form that can be used by cells. What type of change takes place in your mouth when you chew?
  1. Physical change during the entire process of digestion in the mouth
  2. Chemical change during the entire process of digestion in the mouth
  3. Physical change when food is cut and ground and chemical change when food is mixed with saliva
  4. Chemical change when food is cut and ground and physical change when food is mixed with saliva.
  1. Four girls push wheelbarrows filled with dirt up four different ramps.

The work performed on an object is determined by the force applied to the object multiplied by the distance the object moves as a result of the force. All four girls do the same amount of work on their wheelbarrows. Which girl must exert the greatest amount of force on her wheelbarrow to move it up her ramp?

  1. Girl Ac. Girl C
  2. Girl Bd. Girl D
  1. Biodiversity is the degree of variation of life forms within a given ecosystem, biome, or an entire planet. Biodiversity is a measure of the health of ecosystems. Greater biodiversity implies greater health. Which of the following scenarios does NOT correctly describe how the biodiversity of an ecosystem contributes to the sustainability of that ecosystem?
  1. Plants and animals in the ocean thrive when a greater variety of species lives within a habitat.
  2. Terrestrial animals are able to live and reproduce when a significant variety of plant life is available within an ecosystem
  3. Plants and animals in an arctic tundra have little biodiversity, therefore low sustainability.
  4. An ecosystem consisting of all abiotic components will have a greater change of sustainability.
  1. Students in Mrs. Whitman’s science class learn that groundwater is an important source of drinking water for many communities. They construct a model to study how leaking chemicals from a landfill can affect groundwater.
  2. Study the drawing showing the progression of ecological succession following a forest fire.

What is the role of the pioneer species that appear first in the ecological succession of the burned forest?

  1. The pioneer species colonize and modify the forest floor, allowing other species to invade the area.
  2. The pioneer species prevent new fires from starting in the forest.
  3. The pioneer species prevent other species of plants from invading the area.
  4. The pioneer species mutate into new species that are resistant to forest fires.
  1. A tornado is a funnel shaped wind storm caused by temperature differences in unstable air masses. What kind of effect would a tornado have on the different ecosystems?
  2. Ground becomes very dry and hard and will begin to crack
  3. Fast moving water picks up debris, rocks and sediment
  4. Can pull up large trees, blow away small vegetation and move soil
  5. Hot lava and ash destroy vegetation
  1. The image above is illustrating Photosynthesis. What type of energy transformation is taking place?
  1. Chemical Energy to Mechanical Energy
  2. Thermal Energy to Radiant Energy
  3. Radiant Energy to Chemical Energy
  4. Kinetic Energy to Potential Energy

  1. The picture shows a Turgor Pressure demonstration using celery. Place the picture of the celery in order of least amount of pressure to the greatest amount of pressure.
  2. Q,R,S,T
  3. S,R,Q,T
  4. Q,R,T,S
  5. S,T,Q,R
  1. All of the following are examples of how energy stored in food is transformed into other forms of energy during digestion except –
  1. The chemical energy stored in food is transformed into thermal energy used to maintain body temperature.
  2. The chemical energy stored in food is transformed into mechanical energy used for movement.
  3. The chemical energy stored in food is transformed into chemical energy stored in fat.
  4. The chemical energy stored in food is transformed into radiant energy use for photosynthesis.
  1. Which of the following statements best describes the breakdown of large food molecules into smaller molecules?
  2. Enzymes mechanically breakdown large food molecules into smaller molecules
  3. Large molecules are broken down into smaller molecules that contain new elements
  4. The breakdown of food molecules begins in the small intestines
  5. Enzymes aid the chemical breakdown of large food molecules into smaller molecules
  1. Which of the following statements about digestion is true?
  2. Digestion is needed to break down proteins and complex carbohydrates into molecules that are small enough to get to cell of the body.
  3. Digestion is only needed to break down proteins into molecules that are small enough to get to cells of the body. Complex carbohydrates are already small enough to get to cells of the body.
  4. Digestion is only needed to break down complex carbohydrates into molecules that are small enough to get cells of the body. Proteins are already small enough to get to cells of the body.
  5. Digestion is not needed to break down either proteins or complex carbohydrates because these molecules are already small enough to get to the cells.
  1. In a healthy forest, dead trees and limbs fall to the ground and decompose. Which of these statements best describes why decomposition is important to a forest ecosystem?
  2. Nutrients are released and returned to the soil when wood is broken down.
  3. Worms produce oxygen used by other organisms.
  4. Dead trees provide nest sites for many different species of birds.
  5. Water is stored in dead trees and limbs.
  1. styleExamine the graph provided. Two populations of chimpanzees live in two different areas of a jungle region. The jungle area where Population B is located has higher biodiversity than the jungle area where Population A is located.
  1. Chimpanzees in Population A have a lower survival rate because the biodiversity is less.
  2. Chimpanzee survival is not dependent on tree diversity in any part of the jungle
  3. Chimpanzees in Population B have a higher survival rate because the biodiversity is high.
  4. Both A and C
  1. A student is growing a plant in a pot and keeps it sitting on a table near her bedroom window. She goes on vacation for a couple of weeks and no one else is around to water the plant. What will the plant probably look like when the she returns?
  1. The plant will have bent away from the sunlight.
  2. The plant’s leaves will have wilted
  3. The plant will experience no change.
  4. Both A and B