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Questions and Answers
All living things need ______ to stay alive.
energy
The process of obtaining the food necessary for survival and growth is called ______.
nutrition
The mass of living things ______ as they grow.
increases
Animals move to look for ______ and shelter.
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Plants need energy from the ______ to make food.
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The process of removing waste materials from the body is called ______.
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When living things breathe in, they take in ______.
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The process by which a parent produces young is called ______.
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Flowering plants reproduce through ______.
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The remains of living things that are preserved are called ______ fossils.
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Study Notes
Life Processes of Living Things
- Life processes are essential activities that keep living organisms alive.
- Energy is required for survival and is obtained from food through the process of nutrition.
- Growth is a vital life process; living things increase in height, size, and mass as they develop.
Movement
- Movement is crucial for living organisms; all can move independently.
- Animals move to search for food, find shelter, escape dangers, and avoid predators.
- Plants utilize movement by growing towards sunlight and can adjust their growth direction in response to environmental changes.
Waste Removal and Excretion
- Living things produce waste materials; excretion involves removing these wastes.
- Breathing processes involve inhaling oxygen and exhaling carbon dioxide and water, which are waste products.
- Other waste materials are eliminated through urination and sweating.
Reproduction
- Reproduction is essential for species survival; without it, species may face extinction.
- Flowering plants reproduce via seeds located within their fruits, while ferns use spores.
- Some plants like potatoes can reproduce through their stems.
Life and Death
- Non-living things do not exhibit life processes; dead organisms cease all life functions.
- Materials such as plastic, stones, and glass have never possessed life.
- Once living organisms die, they leave behind remains that may decompose or become fossilized.
Fossils
- Fossils are remnants of once-living things; preserved remains are known as body fossils, including bones, teeth, and plant parts.
- Fossil discovery, such as that by Dr. Gideon Mantell and his wife, can reveal new insights about extinct species, like the Iguanodon.
- Paleontologists study fossils to gather information about the Earth's biological history.
Trace Fossils
- Trace fossils are imprints left by living organisms; these include fossilized footprints, eggs, and feces that are preserved in rocks.
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Description
Explore the essential activities that keep living organisms alive, including nutrition, growth, and movement. Learn how living things obtain energy and move to survive.
