Amazon Rainforest: Lungs of the Earth

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Questions and Answers

What are the Amazon rainforests also known as?

  • The Earth's mantle
  • The world's garden
  • Tropical paradise
  • Selvas (correct)

The Amazon rainforests produce more than 50% of the world's oxygen.

False (B)

What architectural feature of the rainforest allows it to block sunlight?

canopy

The Amazon forest floor is usually covered in pitch __________.

<p>darkness</p> Signup and view all the answers

Match the following animals to their habitat within the Amazon rainforest:

<p>Amazon River Dolphin = Rivers and tributaries Spider monkey = Trees Piranha = Water Sloth = Trees</p> Signup and view all the answers

What makes the soil in the Amazon rainforest challenging for plants?

<p>Infertile and acidic conditions (D)</p> Signup and view all the answers

Lianas are plants that grow on the forest floor.

<p>False (B)</p> Signup and view all the answers

Name the plant that has adapted to survive the rainfall by having leaves with pointed tips.

<p>vines</p> Signup and view all the answers

__________ are plants that thrive on high branches in the forest canopy, obtaining nutrients from the air and water.

<p>Epiphytes</p> Signup and view all the answers

Match each plant adaptation to its purpose in the rainforest:

<p>Pointed leaf tips = Water runoff Epiphytic lifestyle = Nutrient acquisition Lianas = Structural support</p> Signup and view all the answers

Which of the following is NOT a common species found in the Amazon rainforest?

<p>Oak trees (D)</p> Signup and view all the answers

The Amazon rainforest has a low diversity of animal species.

<p>False (B)</p> Signup and view all the answers

Name two mammals found in the Amazon rainforest.

<p>Monkeys, sloths</p> Signup and view all the answers

The __________ is one of the largest freshwater fish found in the Amazon rainforest.

<p>pirarucu</p> Signup and view all the answers

Match the animal with its adaptation:

<p>Spider monkey = Long, powerful limbs Flying frog = Webbed hands and feet Three-toed sloth = Camouflaged fur</p> Signup and view all the answers

What is the purpose of the grey-brown fur of two-toed sloths?

<p>Camouflage (C)</p> Signup and view all the answers

Most plants in the Amazon rely solely on the soil for their nutrients.

<p>False (B)</p> Signup and view all the answers

Explain the unique adaptation of the flying frog that helps it navigate the rainforest.

<p>Webbed hands and feet</p> Signup and view all the answers

The dense canopy of the Amazon rainforest results in a __________ environment on the forest floor.

<p>damp</p> Signup and view all the answers

Match the plant species with their use or characteristic:

<p>Cacao = Chocolate Cinchona = Quinine Balsa = Lightweight wood</p> Signup and view all the answers

How does the presence of broad leaves in the Amazon Rainforest contribute to it's physical environment?

<p>Forms a thick canopy (C)</p> Signup and view all the answers

The acidic soil of the Amazon rainforest benefits all plant species equally.

<p>False (B)</p> Signup and view all the answers

Describe the adaptations that enable epiphytes to thrive in the canopy of the Amazon rainforest, contrasting their nutrient acquisition with that of soil-rooted plants.

<p>Epiphytes rely on aerial roots and specialized structures to capture moisture and nutrients from the air, rainwater, and debris accumulating in the canopy, unlike soil-rooted plants that draw nutrients directly from the ground.</p> Signup and view all the answers

The evolutionary adaptation of __________ fur in two-toed sloths serves as a strategic survival mechanism by minimizing detection from predators within the Amazon rainforest's intricate arboreal environment.

<p>grey-brown</p> Signup and view all the answers

Which factor contributes most significantly to the pitch darkness on the Amazon forest floor?

<p>Dense canopy (A)</p> Signup and view all the answers

Which term accurately describes plants that grow non-parasitically on other plants within the rainforest canopy?

<p>Epiphytes (D)</p> Signup and view all the answers

Due to the high levels of biodiversity in the amazon rainforest, there is little to no competition for resources.

<p>False (B)</p> Signup and view all the answers

Describe the unique adaptation of the flying frog and its ecological significance in the Amazonian rainforest.

<p>The flying frog possesses expanded, webbed feet and folds of loose skin that enable it to glide between plants. This reduces the need to descend to the hazardous forest floor, avoiding predators and efficiently accessing resources.</p> Signup and view all the answers

In the Amazon rainforest, __________ such as lianas utilize neighboring trees for structural support as they ascend towards sunlight, showcasing a cooperative adaptation strategy within this competitive ecosystem.

<p>vines</p> Signup and view all the answers

Match each animal in the Amazon rainforest with its respective adaptation showcasing survival mechanisms.

<p>Three-Toed Sloth = Camouflaged Fur Flying Frog = Gliding Membrane Amazon River Dolphin = Echolocation</p> Signup and view all the answers

Flashcards

Amazon Rainforest

The largest tropical rainforest in the world, also known as 'selvas'.

Rainforest Canopy

A dense layer of treetops that blocks sunlight from reaching the forest floor.

Epiphytes

Plants that live on high branches in the forest canopy and get nutrients from air and water.

Lianas

Climbing or trailing woody-stemmed plants that wrap around other trees.

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Adaptations

Unique traits that help animals survive in their environment.

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Camouflage

Grey brown of two-toed sloths fur matching the colour of tree trunks and branches

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Study Notes

  • The Amazon forests are the largest tropical rainforest in the world.
  • The Amazon forests are known as selvas.
  • The Amazon forests are referred to as the 'lungs of the Earth'.
  • The Amazon forests take in carbon dioxide and release oxygen.
  • More than 20% of the world's oxygen is produced by the Amazon rainforest.
  • The Amazon rainforests are home to a vast variety of flora and fauna.
  • Hardwood trees are closely placed with broad leaves, forming a thick canopy on top.
  • The canopy blocks sunlight from reaching the forest floor, resulting in a dense, dark, and damp environment.
  • The soil in this region is generally infertile and acidic, making it challenging for plants to access nutrients.
  • Plants in the rainforest have evolved unique characteristics to survive.
  • Vines are climbing or trailing woody-stemmed plants related to the grapevine.
  • Vines, such as lianas, wrap around other trees to sustain themselves.
  • Many plants have leaves with pointed tips that allow water to run off without causing damage.

Did You Know

  • The Amazon forest floor is usually covered in pitch darkness.
  • Thick and interwoven top branches and leaves of the trees form a dense canopy.
  • The canopy is so thick that it takes around ten minutes for the rainwater to reach the ground.

Epiphytes

  • Epiphytes are plants that thrive on high branches in the forest canopy.
  • Epiphytes obtain their nutrients from the air and water rather than the soil.
  • Ferns, orchids, mosses, algae, and lichens are all epiphytes.
  • Palm, rubber, cane, balsa, cacao, banana tree, cinchona (quinine), and carnauba palm trees are among the most commonly found species in the Amazon forests.
  • The Amazon rainforest is home to a diverse range of animals, including mammals like monkeys, tapirs, pumas, jaguars, sloths, anteaters, and armadillos.
  • The Amazon Rainforest is home to a diverse range of wildlife, including pythons, crocodiles, alligators, turtles, ants, beetles, butterflies, and over 2000 varieties of fish, including piranhas, pirarucu, and tambaqui.
  • Many bird species are found in the Amazon rainforest, like hummingbirds, toucans, parrots, and macaws.
  • River dolphins like the Amazon River dolphin and the Amazonian manatee can be found in the rivers and tributaries of the Amazon Basin.

Tropical Rainforest Adaptations

  • Tropical rainforests have unique conditions that have led to many adaptations in animals.
  • The spider monkey has long and powerful limbs that aid in its tree-climbing.
  • The flying frog has fully webbed hands and feet and a flap of loose skin stretching between its limbs, allowing it to glide smoothly from one plant to another.
  • Three-toed sloths have tan coats.
  • Two-toed sloths usually have grey-brown fur that matches the color of tree trunks and branches, providing excellent camouflage and making it challenging for predators to locate them.

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