2.1 Energy in Ecosystems
2.2 Cycles of Matter
2.4 Biomes
2.5 Aquatic Ecosystems
Vocabulary
100
What are the 4 main ways that we can group organisms based on what they eat?
meat only- carnivores plants only- herbivores both- omnivores makes own food- producers
100
Fill in the blanks ______ exhale Oxygen that _________ inhale. ______ exhale Carbon Dioxide that __________ inhale.
PLANTS exhale Oxygen that ANIMALS inhale. ANIMALS exhale Carbon Dioxide that PLANTS inhale.
100
Which biome has the most diversity of organisms?
Tropical Rainforest
100
What are the 2 different types of aquatic ecosystems? Give me 2 examples of each type.
Fresh- pond, lake, river, stream Marine- open ocean, estuary, neritic zone, intertidal zone
100
Define biome.
a group of ecosystems with similar climates and organisms.
200
Where does all of the energy in an ecosystem come from?
the sun
200
Explain the Water Cycle. Be sure to mention the three main parts of the Water Cycle.
Water can be stored in the ocean. With enough heat from the sun, water droplets EVAPORATE and become water vapor as they travel into the sky. While in the sky the water vapor cools and CONDENSATION occurs. The water vapor then changes back into water droplets and forms clouds. Once enough water droplets gather in the clouds precipitation occurs. Depending on the weather the water droplets will fall back to Earth's surface as snow, sleet, hail, or rain. Then the cycle can begin all over from wherever the precipitation lands.
200
In which Biome would you find coniferous trees? (In what shape do seeds grow?) <--bonus points (100)
Boreal Forests cones
200
What is the most common producer in an aquatic ecosystem?
algae
200
Define Deciduous trees. Use it in a sentence.
trees that lose their leaves once a year. Deciduous trees can be found in a deciduous forest (a.k.a where we live!)
300
What are the three roles that organisms can have in an ecosystem? How are they connected?
Producer, Consumer, Decomposer Producers make their own food through photosynthesis and provide a food source for consumers. Consumers then provide food for higher level consumers. When producers and consumers die the decomposers break them down and then put nutrients back into the soil to help the producers grow and provide food for the consumers...
300
Can plants and animals use Nitrogen right from the air? If not, what needs to happen first?
No, plants and animals cannot use Nitrogen right from the air. Bacteria need to fix the Nitrogen and change it into a useable form before plants and animals can use the Nitrogen.
300
Describe the following about the Desert: -biodiversity -amount of precipitation -when are the organisms most active
-least amount of biodiversity -less than 10in a year -at night; many are nocturnal
300
What 4 abiotic factors greatly impact aquatic ecosystems?
sunlight, oxygen, temperature, salt content
300
A taiga is a type of...
tundra
400
Label the Energy Pyramid on the board and tell me about the amount of energy in each level.
More energy on the bottom than the top.
400
What important role do producers play in the Carbon Dioxide and Oxygen Cycle? What would happen if there were no more trees?
Producers take in Carbon Dioxide and release Oxygen as waste. This helps consumers (like humans) breathe. Without the producers, consumers would not have enough Oxygen to breathe. If there were no more trees people would have a hard time breathing. (This cycle also goes the other way--Consumers release Carbon Dioxide as waste, which the producers take in, in order to complete photosynthesis.)
400
What are two ways the people can change biomes? In what span of time do these changes occur?
1. Chopping down trees 2. Polluting water --gradually
400
Label the drawing on the board.
estuary, intertidal zone, neritic zone, surface zone, deep zone
400
What are two types of Grasslands?
savannahs, prairies
500
Make a food chain using the following organisms. frog, snake, fly, owl, leaf,hawk
leaf-->fly-->frog-->snake-->owl-->hawk
500
Explain the Nitrogen cycle. Nitrogen starts in the air as .... (complete the cycle)
Nitrogen starts in the air as "free" Nitrogen. Then bacteria in soil or nodules "fixes" the Nitrogen so organisms can use it. The "Fixed" Nitrogen gets used by plants to help them grow. Then the plants get eaten by consumers and the "Fixed" Nitrogen makes its way into the animal and helps it make proteins and grow. Once the animal dies the "Fixed" Nitrogen gets broken down by decomposers. If they break it down completely it goes back into the air as "free" Nitrogen. If they break it down partially, it goes back into the soil as "Fixed" Nitrogen
500
How is the Taiga different than the Tundra?
Taiga: Evergreen trees grow here Tundra: Very little plant life grows here
500
Explain 2 adaptations that crabs have that help them survive in the intertidal zone.
legs/claws to help them burrow into the sand to hide and stay moist. hard shells to keep them from smashing when they get tossed into a rock by the waves. some have eyes on top of their heads to see when predators are coming
500
What is the difference between a food chain and a food web? Which one more accurately represents the flow of energy in an ecosystem?
A food chain shows one series of events that can occur in an ecosystem (a.k.a. one path energy can take through an ecosystem). A food web is a bunch of overlapping food chains that occur in an ecosystem. Since the food web is many overlapping food chains it shows all of the possible paths that energy can take through an ecosystem. It also better shows how the organisms are connected and what would happen if you took out one particular organism.
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