botany
planet earth - pole to pole
http://www.thirteen.org/books-and-films/series/planetearth/pole-to-pole/
1. what type of plant life is found in the arctic tundra?
grassy, trees
2. how do plants in the amazon rainforest adapt to the constant competition for sunlight?
they tend to grow taller
3. which plant species in the desert has evolved to store water for survival?
4. how does the mangrove tree adapt to growing in salty coastal waters?
5. what is the main characteristic of plants in the savannas that helps them endure drought?
they have deep root systems
6. why are mosses and lichens significant in the early stages of plant life in the arctic?
6 pts d/c the provide food? help make soil
as you watch the video, write down facts from the information provided in the video. you must have 10 facts.
1 shallow seas around continents, though only 8%.
2 not 2 many plants grow in the artic
3 plants dont tend to grow in the desert
4 plants adapt to their environment
5 plants can still grow near salt water
6 many animals depend on certain plants to survive.
7
8

Question

botany
planet earth - pole to pole
http://www.thirteen.org/books-and-films/series/planetearth/pole-to-pole/
1. what type of plant life is found in the arctic tundra?
   grassy, trees
2. how do plants in the amazon rainforest adapt to the constant competition for sunlight?
   they tend to grow taller
3. which plant species in the desert has evolved to store water for survival?
4. how does the mangrove tree adapt to growing in salty coastal waters?
5. what is the main characteristic of plants in the savannas that helps them endure drought?
   they have deep root systems
6. why are mosses and lichens significant in the early stages of plant life in the arctic?
6 pts  d/c  the provide food?  help make soil
as you watch the video, write down facts from the information provided in the video. you must have 10 facts.
1 shallow seas around continents, though only 8%.
2 not 2 many plants grow in the artic
3 plants dont tend to grow in the desert
4 plants adapt to their environment
5 plants can still grow near salt water
6 many animals depend on certain plants to survive.
7
8

Accepted Answer

### Question 1: What type of plant life is found in the Arctic tundra?
# Brief Explanations:
In the Arctic tundra, common plant life includes mosses, lichens, sedges, and dwarf shrubs (like willows and birches). These plants are adapted to the cold, windy, and nutrient - poor conditions. Mosses and lichens can survive with little soil and low temperatures, while sedges and dwarf shrubs have adaptations to withstand the harsh environment.
# Answer:
Mosses, lichens, sedges, and dwarf shrubs (e.g., dwarf willows, dwarf birches) are found in the Arctic tundra.

### Question 2: How do plants in the Amazon rainforest adapt to the constant competition for sunlight?
# Brief Explanations:
Plants in the Amazon rainforest have various adaptations for sunlight competition. Epiphytes (like orchids, bromeliads) grow on other plants to get closer to the canopy. Emergent trees grow very tall to rise above the canopy. Some plants have large, broad leaves to capture more light, and others have adaptations in their leaf orientation or phototropism to maximize light absorption. Also, understory plants may have adaptations to photosynthesize efficiently in low - light conditions.
# Answer:
Plants in the Amazon rainforest adapt by: 1. Epiphytes growing on other plants to access higher light levels. 2. Emergent trees growing tall to rise above the canopy. 3. Some having large, broad leaves to capture more light. 4. Understory plants being adapted to low - light photosynthesis.

### Question 3: Which plant species in the desert has evolved to store water for survival?
# Brief Explanations:
Cacti (e.g., saguaro cactus, barrel cactus) are well - known desert plants that store water. Succulents like aloe vera and agave also store water in their leaves, stems, or roots. The saguaro cactus has a large, fleshy stem that can store a significant amount of water, and its spines reduce water loss and protect it from herbivores.
# Answer:
Cacti (e.g., saguaro cactus, barrel cactus) and succulents (e.g., aloe vera, agave) are desert plant species that store water.

### Question 4: How does the mangrove tree adapt to growing in salty coastal waters?
# Brief Explanations:
Mangrove trees have several adaptations. They have specialized roots (like pneumatophores) that help with gas exchange in the waterlogged, anaerobic soil. They also have a mechanism to exclude salt at the root level or excrete excess salt through special glands in their leaves. Some mangroves can also store salt in older leaves which then fall off, removing the salt from the plant.
# Answer:
Mangrove trees adapt by: 1. Having pneumatophores for gas exchange in waterlogged soil. 2. Excluding salt at the roots or excreting salt through leaf glands. 3. Storing salt in old leaves that fall off.

### Question 5: What is the main characteristic of plants in the savannas that helps them endure drought?
# Brief Explanations:
Plants in the savanna, like grasses and some trees (e.g., acacia), often have deep root systems. These deep roots can reach underground water sources during dry periods. Also, many savanna plants are deciduous, shedding their leaves during the dry season to reduce water loss through transpiration. Grasses in the savanna can also go dormant during drought and regrow when water is available.
# Answer:
The main characteristics are: 1. Deep root systems to access underground water. 2. Deciduousness (shedding leaves) to reduce water loss. 3. Dormancy in grasses during drought.

### Question 6: Why are mosses and lichens significant in the early stages of plant life in the Arctic?
# Brief Explanations:
Mosses and lichens are significant in the early stages of Arctic plant life. They are pioneer species, meaning they are among the first to colonize the area. They help in soil formation by breaking down rocks and adding organic matter when they die and decompose. They also provide a small amount of organic material and a microhabitat for other, more complex plants to eventually grow. Additionally, they can photosynthesize in the cold conditions and contribute to the local ecosystem's energy flow.
# Answer:
Mosses and lichens are significant as: 1. Pioneer species colonizing the Arctic. 2. They aid in soil formation by breaking down rocks and adding organic matter. 3. Provide a microhabitat and organic material for other plants. 4. Contribute to the ecosystem's energy flow through photosynthesis.

### Task: Write down 10 facts from the video (completing the list)
# Brief Explanations:
To complete the list of 10 facts, we can consider other aspects of the video's content about plant - environment interactions. For example, we can add facts about the types of animals that interact with plants, more details about plant adaptations in different biomes, or geographical facts related to plant distribution.
1. Shallow seas around continents cover only 8% of the ocean area.
2. Not many plants grow in the Arctic.
3. Plants don't tend to grow in the desert.
4. Plants adapt to their environment.
5. Plants can still grow near salt water.
6. Many animals depend on certain plants to survive.
7. Mangrove trees have special roots for gas exchange.
8. Savanna plants have deep roots to endure drought.
9. Epiphytes in the Amazon use other plants for support to get light.
10. Cacti store water in their stems to survive in deserts.
# Answer:
1. Shallow seas around continents cover only 8% of the ocean area.
2. Not many plants grow in the Arctic.
3. Plants don't tend to grow in the desert.
4. Plants adapt to their environment.
5. Plants can still grow near salt water.
6. Many animals depend on certain plants to survive.
7. Mangrove trees have special roots for gas exchange.
8. Savanna plants have deep roots to endure drought.
9. Epiphytes in the Amazon use other plants for support to get light.
10. Cacti store water in their stems to survive in deserts.

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Explanation:

Question 1: What type of plant life is found in the Arctic tundra?

Answer:

Question 2: How do plants in the Amazon rainforest adapt to the constant competition for sunlight?