1. Welcome! The Topic For Today Is…

2. Life Science Adaptations Ecosystems Human Impact Plants/Animals
Food Chains
200
400
600
800
1000
Bonus Question: 5000 pts

3. Adaptations: 200 Question:
Why does a Saguaro Cactus have a shallow root system?
Answer
To capture the limited rainfall in the desert.
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4. Adaptations: 400 Question:
How does a desert tortoise use its shell to survive in the heat of the desert?
Answer
It can store water for up to a year!
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5. Adaptations: 600 Question:
What are the two ways the Big Horn sheep uses its body to climb?
Answer
They have strong back legs and two toed hooves for traction.
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6. Adaptations: 800 Question:
Why do animals change color from one season to another?
Answer
To blend in with their environment and to protect themselves from predators.
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7. Adaptations: 1000 Question:
Why do deciduous trees lose their leaves in the fall
Answer
1. The leaves drop off cutting down on water loss and preventing the leaves from icing up and killing the tree.
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8. Ecosystems: 200 Question: Define the word “ecosystem” Answer
All the populations of living organisms and nonliving physical factors in a given area (can be in your own words, but must include both the living and nonliving).
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9. Ecosystems: 400 Question:
Define the word “abiotic” and give an example.
Answer
A part of an ecosystem that was never alive (weather, soil, rocks, water).
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10. Ecosystems: 600 Question:
What ecosystem is extremely cold and mostly flat. It is home to the Arctic Willow and the Caribou
Answer
The Arctic Tundra
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11. Ecosystems: 800 Question:
What are two major differences between the deciduous forest and the coniferous forest.
Answer
The deciduous forest’s trees change color and lose their leaves and have a mild, moist climate. The coniferous forest is made up of mainly evergreens and have a fairly cold climate.
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12. Ecosystems: 1000 Question:
List the 7 ecosystems we researched as a class.
Answer
Tundra, Tropical Rainforest, Desert, Deciduous Forest, Coniferous Forest, Grassland, and Ocean.
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13. Human Impact: 200 Question:
List one way humans can negatively impact an ecosystem
Answer
Pollution, fire, building, excessive hunting, environmental accidents
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14. Human Impact: 400 Question:
List two things humans can do to positively impact their environment
Answer
Recycle, pick up trash, don’t pollute, manage wildlife, conserve natural resources
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15. Human Impact: 600 Question:
Give three examples of how people protect the rainforest trees.
Answer
Pass laws to protect them
Have controlled logging
Replant trees after logging
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16. Human Impact: 800 Question:
Even though a rocky dry desert looks tough, it is a delicate place. What two ways can hikers negatively affect the environment when leaving a trail?
Answer
They could crush plants
They could trample over animals burrows
They could kill spiders that are food for other desert animals.
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17. Human Impact : 1000 Question:
Why are people causing grasslands to disappear (you need one of the answers below)?
Answer
The rising population of humans, causes us to need more crops and places to live. More and more grasslands are being plowed over for these crops and places for homes to be built.
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18. Plants/Animals: 200 Question:
I hunt at night. I can turn my head 270 degrees. I silently swoop on my prey. Who am I?
Answer
Owl
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19. Plants/Animals: 400 Question:
What is one internal need all animals have to take care of or die?
Answer
Finding food
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20. Plants/Animals: 600 Question:
What is a group of the same species living in the same place at the same time?
Answer
A population
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21. Plants/Animals: 800 Question:
How does the structure of the leaves on the Leaf Fan palm help it to survive (you need one of the two answers) ?
Answer
The fan shape of the leaves helps it lose less water and also shades the rest of the plant.
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22. Plants/Animals: 1000 Question:
What are three ways an animal uses behavior to adapt in order to survive?
Answer:
Camouflage
Hibernation
Migration
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23. Food Chains: 200 Question: What do all food chains start with? Answer
The Sun
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24. Food Chains: 400 Question:
Name the basic parts of a food chain. (4 parts)
Answer
The Sun, producer, consumer, decomposer
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25. Food Chains: 600 Question: What are three functions of decomposers?
Answer
Break down wastes
They break down dead organisms
They return nutrients to the soil
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26. Food Chains: 800 Question:
If most of the rabbits became sick and died, what would likely happen to the population of the other species on the island (you need one of the answers)?
Answer
The population of the rabbit consumers would decrease. The producers would over populate.
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27. Food Chain: 1000
2076
2077
2078
2079
2080
Salmon
841
537
458
282
140
Bald Eagles 3 2 1
Humans 8
115
739
1205
1568
Question:
Why did the eagle most likely decline over the 5 year period?
Answer
The population declined because humans fished for many salmon which is food source for eagles and the salmon population declined.
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28. Bonus Question: 5000 pts. Question:
What is it called when the relationship between two organisms of different species benefits one or both of the organisms.
Answer
Symbiosis
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