Living Organisms and Their Habitats
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Questions and Answers

Which of the following is a characteristic of living organisms that allows them to maintain a stable internal environment?

  • Respiration
  • Adaptation
  • Growth
  • Homeostasis (correct)

What is the primary purpose of respiration in living organisms?

  • To produce food
  • To release energy from food (correct)
  • To absorb nutrients
  • To eliminate waste products

What is the primary source of energy for animals?

  • Water
  • Sunlight
  • Photosynthesis
  • Plants or other animals (correct)

Which of the following organisms utilizes their skin for gas exchange?

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

Which of the following is NOT a characteristic shared by all living things?

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

Through which structures do plants primarily exchange gases with the environment?

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

Why is food essential for living organisms?

<p>All of the above. (D)</p> Signup and view all the answers

What is the primary source of energy used by plants to produce their own food during photosynthesis?

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

Which of the following is NOT an example of a response to stimuli in living organisms?

<p>A rock rolling down a hill (B)</p> Signup and view all the answers

Which of these is an example of how organisms grow?

<p>A seed sprouting into a plant (B)</p> Signup and view all the answers

How do the flowers of some plants respond to changes in their surroundings?

<p>They bloom only at night (C)</p> Signup and view all the answers

What is the process by which plants create their own food?

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

Which of the following statements is TRUE about the relationship between respiration and photosynthesis in plants?

<p>Photosynthesis consumes carbon dioxide and releases oxygen, while respiration consumes oxygen and releases carbon dioxide. (A)</p> Signup and view all the answers

Which of the following can be considered a living organism?

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

How do animals obtain the energy they need to grow?

<p>By consuming plants or other animals (D)</p> Signup and view all the answers

What is the difference between the growth of a plant and the growth of an animal?

<p>Plants grow by adding new cells only at their tips, while animals grow throughout their bodies. (A)</p> Signup and view all the answers

What is one way plants excrete waste products?

<p>They store waste products in their tissues. (B)</p> Signup and view all the answers

How do most plants reproduce?

<p>Through seeds and parts other than seeds. (B)</p> Signup and view all the answers

Which of the following statements about plant movement is true?

<p>Plants cannot move but can transport substances internally. (D)</p> Signup and view all the answers

Which structure in a potato helps in reproduction?

<p>A bud on the potato. (A)</p> Signup and view all the answers

What do we call the process by which plants produce new individuals?

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

What is a characteristic common to all organisms?

<p>Excretion. (A)</p> Signup and view all the answers

Which method of reproduction is NOT typically associated with plants?

<p>Reproduction through binary fission. (C)</p> Signup and view all the answers

What is the main reason some plants excrete waste products as secretions?

<p>To prevent accumulation of harmful substances. (B)</p> Signup and view all the answers

What is a key aspect of the process of 'respiration'?

<p>The process of giving off heat (D)</p> Signup and view all the answers

What is the BEST explanation for why a seed is considered living?

<p>It can germinate and grow into a plant (D)</p> Signup and view all the answers

What is a common misconception about non-living things?

<p>They never display any characteristics of living things (C)</p> Signup and view all the answers

Which of the following is NOT a characteristic of living things?

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

What is the most accurate conclusion from the provided content about life?

<p>Life is diverse and complex, making it difficult to define (A)</p> Signup and view all the answers

Which of the following sea animals have streamlined bodies to help them move easily in water?

<p>Dolphins (B), Whales (D)</p> Signup and view all the answers

What is the primary function of gills in sea animals?

<p>To extract oxygen from the water (C)</p> Signup and view all the answers

How do dolphins and whales breathe in air?

<p>Through nostrils or blowholes located on the upper part of their heads (A)</p> Signup and view all the answers

Why do dolphins and whales come to the surface of the water?

<p>To breathe in air (A)</p> Signup and view all the answers

What is the main function of the roots in aquatic plants?

<p>To anchor the plant in place (D)</p> Signup and view all the answers

What is the characteristic feature of submerged aquatic plants?

<p>They have narrow and thin ribbon-like leaves (B)</p> Signup and view all the answers

What is NOT a common habitat for aquatic plants?

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

Which of the following statements is true about the adaptations of sea animals?

<p>Sea animals with blowholes cannot survive underwater for long periods (B)</p> Signup and view all the answers

What is the primary function of the thick waxy layer covering the stem of a cactus?

<p>To prevent water loss from the plant (C)</p> Signup and view all the answers

What is the adaptation that allows snow leopard to survive in cold mountain regions?

<p>Thick skin or fur (C)</p> Signup and view all the answers

Which of the following statements is NOT true about mountain habitats?

<p>Mountain regions have no vegetation (D)</p> Signup and view all the answers

How do the needle-like leaves of some trees in mountain regions aid in survival?

<p>They allow the rainwater and snow to slide off easily (A)</p> Signup and view all the answers

Why do desert plants have roots that go very deep into the soil?

<p>To reach underground water sources (A)</p> Signup and view all the answers

What is the purpose of the polythene bags used in the experiment mentioned in the text?

<p>To measure the amount of water lost by the plants (D)</p> Signup and view all the answers

What is the main difference between the leaves of a typical plant and the leaf-like structure of a cactus?

<p>The cactus leaf is actually its stem (A)</p> Signup and view all the answers

In the context of the text, what is the primary purpose of the experiment involving the cacti and leafy plants?

<p>To demonstrate the difference in transpiration rate between cacti and leafy plants (A)</p> Signup and view all the answers

Flashcards

Desert plant adaptations

A type of plant adaptation to survive in arid environments, characterized by reduced leaf surface area, a thick, waxy layer, and deep roots.

Cactus stem

The main organ in cacti that carries out photosynthesis, resembling a leaf.

Thick waxy layer on cactus stems

A special adaptation of desert plants that helps conserve water by reducing water loss from the leaves.

Mountain region

A type of habitat characterized by cold temperatures, winds, and snowfall, typically found on mountains.

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Adaptation

A physical trait that helps organisms survive in a specific environment, like thick fur for warmth in cold climates.

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Thick fur

A common adaptation in mountain animals for staying warm in cold temperatures.

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Cone-shaped trees with sloping branches

A tree adaptation for shedding rain and snow efficiently in mountain regions, commonly found in conifers.

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Needle-like leaves

A type of adaptation in mountain trees that helps them cope with harsh conditions, characterized by needle-like leaves.

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Gills

These are the breathing organs of aquatic animals that allow them to take in oxygen dissolved in water.

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Streamlined Body

The characteristic of having a body shape that is streamlined and helps animals move efficiently through water.

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Blowholes

Special openings on the top of a whale or dolphins head that they use to breathe in air.

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Aquatic Plants

These are plants that live in water.

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Roots of Aquatic Plants

The parts of aquatic plants that are reduced in size and mainly used to keep the plant anchored.

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Stems of Aquatic Plants

The stems of aquatic plants are often long, hollow and buoyant, allowing them to reach the water surface.

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Floating Leaves of Aquatic Plants

These are flattened, wide leaves that float on the surface of water to absorb sunlight.

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Submerged Aquatic Plants

Some aquatic plants remain submerged in water, with their leaves often thin and ribbon-like.

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Why do organisms need food?

The process by which living things use food to obtain energy for growth and other life processes.

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What is growth?

The continuous change in size and form that occurs in living organisms as they develop. It's like a caterpillar turning into a butterfly!

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What is reproduction?

The ability of living things to produce offspring, ensuring the continuation of their species. It's how life goes on!

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What is a response to stimuli?

Organisms react to changes in their surroundings, allowing them to survive and adapt. It's like a plant turning towards sunlight.

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What are cells?

All living things are made up of tiny building blocks called cells.

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What are the levels of organization?

Living things are organized into different levels, starting with cells and going up to complex organisms. It's like a puzzle with many pieces!

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What is photosynthesis?

The process by which plants convert light energy into chemical energy in the form of sugars. It's like turning sunlight into food!

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What is respiration?

Living things break down food molecules to release energy for their life processes. It's like burning fuel to power a car.

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Characteristics of life

All living things exhibit characteristics of life, such as growth, respiration, movement, and reproduction. Non-living things may show some of these characteristics, but not all.

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Respiration in seeds

Respiration is a process where living organisms break down food to release energy. Even seeds show signs of life through respiration.

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What is life?

The study of life is complex and multifaceted. There's no single definitive answer to the question of what life is.

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What is a habitat?

The different places where living organisms make their home are called habitats. Each habitat has its own unique conditions and challenges that influence the types of life that thrive there.

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What is an adaptation?

Adaptations are traits that help organisms survive and thrive in their specific habitats. These can be physical features (like fur) or behavioral changes (like migration).

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Excretion

The process by which organisms remove waste products from their bodies.

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Waste storage in plants

Plants store waste products inside their parts, often in a way that doesn't harm the plant.

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Waste secretions in plants

Some plants release waste products as special substances.

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Reproduction

The process by which living things produce more of their own kind.

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Seed reproduction

Plants produce seeds, which can germinate and grow into new plants.

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Reproduction without seeds

Some plants reproduce using parts other than seeds, like a piece of potato with a bud.

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Plant movement

Plants are usually fixed in one place, but substances like water, minerals, and food travel within them.

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Plant responses to stimuli

Some plants show specific movements in response to things like light or touch.

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Respiration

The process by which living organisms obtain energy from food, releasing energy for their vital functions. It involves taking in oxygen and releasing carbon dioxide.

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Stimuli

Changes in the surroundings that cause a living organism to react or respond.

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Response to stimuli

The way a living organism reacts or responds to a stimulus in its environment.

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Stomata

Tiny pores on the surface of leaves that allow for the exchange of gases, specifically taking in carbon dioxide (CO2) and releasing oxygen (O2).

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Photosynthesis

The process by which plants produce food using sunlight, carbon dioxide, and water, releasing oxygen as a byproduct.

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Animal Respiration

The exchange of gases in animals, involving taking in oxygen (O2) and releasing carbon dioxide (CO2).

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Study Notes

Living Organisms and Habitats

  • Organisms live in various environments, each with different conditions
  • These environments include deserts, mountains, and seashores; and these locations all have distinct characteristics.

Habitats and Adaptations

  • Organisms in different habitats have unique adaptations that help them survive
  • Camels, for example, have adaptations like dry dung, little urine production and fat reserves to conserve water in arid environments.
  • Fish have streamlined bodies for fast movement in water

Terrestrial Habitats

  • Deserts: Animals like rats and snakes burrow underground to stay cool during the day
  • Mountains: Animals such as yaks have thick fur or thick skins to adapt to cold and windy conditions
  • Grasslands: Lions and deer have features that help with hunting or escaping predators

Aquatic Habitats

  • Oceans: Many sea creatures have streamlined bodies for faster movement in water
  • Ponds and Lakes: Various aquatic plants either float on the surface or have roots fixed in the soil beneath the water.

Do all Organisms Need Food?

  • Food is needed by all living organisms as it provides energy for growth and life processes.

Do all Organisms Show Growth?

  • Organisms grow over time. Animals and plants both grow.

Do all Organisms Respire?

  • Respiration is essential for all organisms, taking in oxygen and releasing carbon dioxide.

Do all Organisms Respond to Stimuli?

  • Organisms react to changes in their surroundings, responding to stimuli
  • This includes changes in light, touch, and smell.

Do all Organisms Reproduce?

  • Most organisms reproduce to create new individuals of their kind
  • This can involve producing eggs, giving birth to young ones (live birth), or growing from parts of the parent organism or seeds
  • Plants reproduce through seeds, spores, or other methods

Excretion

  • All organisms get rid of waste products through excretion
  • Waste products can be eliminated through different bodily processes

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Related Documents

The Living Organisms - Characteristics and Habitats PDF

Description

Explore the diverse habitats where organisms thrive and the unique adaptations they possess to survive in their environments. From deserts to oceans, this quiz will test your knowledge of how living beings interact with their surroundings and adapt to various challenges. Understand the characteristics of terrestrial and aquatic habitats.

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