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Questions and Answers
What is the stage called when the insect is camouflaged inside a sac and changes from a worm shape to a full-grown insect?
Which adaptation helps some animals survive in cold weather conditions?
What type of environment has large open areas of grasses, trees are not common, and it does not rain often?
Which special body part helps a polar bear blend in with the snow?
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What structures help some plants survive in hot, dry conditions?
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In which environment would you expect to find animals like caribou and wolves due to its cold and windy climate?
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What type of environment is known for its dense canopies of vegetation that form three different layers?
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In which type of environment do many animals become active at night due to the extreme heat during the day?
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Which region is typically treeless and covered with snow for much of the year?
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Where would you find a hot, moist environment with almost year-long rainfall and dense vegetation layers?
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In which type of environment can plants on the forest floor struggle to receive sunlight due to the thick canopy layer?
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Which environment is characterized by areas filled with salty water and divided into five different sections?
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What is the particular way a living thing grows, reproduces, and dies called?
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Which of the following is NOT a life stage of butterflies and lady beetles?
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What is the term for a single step in a process?
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How do many seeds of plants get dispersed?
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What is the process of producing new offspring in plants and animals called?
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Which of the following is typically NOT part of the life cycle of animals with simple life cycles?
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Study Notes
Life Cycles
- Organisms go through observable changes during their life cycles, including birth, growth, development, reproduction, and death.
- A life cycle is the particular way a living thing grows, reproduces, and dies.
- A stage is a single step in a process.
Stages of Insect Life Cycle
- Egg (unborn stage)
- Larva (the young stage when most feeding is done and the insects look like worms)
- Pupa (the no-feeding stage when the insect is camouflaged inside a sac and changes from a worm shape to a full-grown insect)
- Adult (the stage when the insect leaves the pupa, usually has wings, and is ready for reproduction)
Adaptations and Environments
- Structures of plants and animals are adapted to particular environments.
- Examples of adaptations:
- Blubber of seals to survive in cold weather
- Fur of rabbits to survive in cold weather
- Waxy coating of a cactus to survive in hot, dry conditions
- Presence of spines instead of leaves to survive in hot, dry conditions
- Polar bear adaptations:
- White fur to blend in with the snow
- Layer of blubber to stay warm
- Sharp claws to catch prey
- Hibernation since food is scarce in winter
Environments
Grassland
- A place made up of large open areas of grasses
- Maintained by grazing animals and frequent fires
- Trees can be present, but often are not
- It does not rain often
Tundra
- A place found in the Arctic and on the tops of mountains
- Climate is cold and windy, with scant rainfall
- Land is covered with snow for much of the year
- Typically treeless regions
Tropical Rainforest
- A hot, moist environment with high rainfall throughout the year
- Dense canopies of vegetation with three different layers (canopy, understory, forest floor)
- Plants on the forest floor adapt to survive with little sunlight
Ocean
- Areas of salty water that fill enormous areas on the Earth's surface
- Divided into five different sections (Pacific, Atlantic, Indian, Southern, and Arctic Oceans)
Wetland
- A place where the land is covered by water—salt, fresh, or somewhere in between—either seasonally or permanently
- Vegetation (plants) can often be found in a wetland
Desert
- Areas that receive very little precipitation (rainfall)
- Often very hot, so many animals are active at night when it is cooler
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Description
Prepare for the Unit 6 Life Cycles & Environments test with this study guide. Understand how organisms go through observable changes during their life cycles, including stages like birth, growth, development, reproduction, and death. Learn about the life cycles of plants and the processes of growth and reproduction.
