Life System Final Review

What’s the main reason plants do photosynthesis?

• To provide food and oxygen for animals

• To use the sun's energy

• To make sugar to store energy

• To create energy

Which forms of energy does food change into during cellular respiration?

• Light and sound

• Sound and electricity

• Electricity and mechanical

• Mechanical and heat

What chemical reaction releases the energy stored in sugar?

• Reduction

• Photosynthesis

• Oxidation

• Cellular respiration

What type of energy does a plant store as it absorbs solar energy, and performs photosynthesis?

• Mechanical energy

• Chemical energy

• Electrical energy

• Sound energy

Which of the following describes the energy flow through living things starting with the sun?

• Solar energy --> Heat energy --> Mechanical energy --> Chemical energy

• Chemical energy --> Mechanical energy --> Heat energy --> Chemical energy

• Mechanical energy --> Solar energy --> Chemical energy --> Heat energy

• Solar energy --> Chemical energy --> Mechanical energy --> Heat energy

When a cheetah runs it is changing chemical energy in its fat and muscle cells into what kind of energy?

• Mechanical/kinetic & heat energy

• Light & sound energy

• Chemical energy

• Nuclear energy

The Zebra Dove bird species lives on zebra’s backs and eats bugs and parasites off the zebra. This is an example of which relationship?

• Producer/Consumer

• Predator/Prey

• Parasitism

• Mutualism

Which organisms are necessary for all other life on Earth to exist?

• Producers

• Primary consumers

• Herbivores

• Predators

Why are scientists concerned about the destruction of the rainforests?

• Much of the wood harvested is going to waste

• Many species of plants and animals are lost

• People living nearby will not stay in these areas

• Animals must change their diets to eat the new foods

Bald eagles and osprey prey largely on fish. How would the complete loss of bald eagles affect the food web they belong to?

• The populations of fish would drop

• The populations of fish would rise

• The populations of osprey would drop

• The population of osprey would be unaffected