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The four major characteristics of living organisms

Reproduction - All species of living things have a way to make more of themselves. What do all living things have in common?

Classification of Living Things

Whether you are a person, a tree, or even a fungus, all living things share some important characteristics. These qualities are proof of life, in a sense, and no matter how simple or complex the species may be, being alive means we all share many basic characteristics.

In a flower, the anther produces pollen sperm while the ovules in the ovary contain the female eggs. Living things are made of cells.

  • Cells build a body much like bricks construct a building;
  • See links below The 7 Characteristics of Living Things Below is an example of the 7 Characteristics ofl iving things, using the earthworm as an example;
  • Example, we think HIV causes Aids because of many observations showing a correlation of the two;
  • Not all substances can be divided down to an atom.

Cells are the basic building blocks of living things. Some living things are unicellular only one cellbut most are multicellular containing many cells. Cells build a body much like bricks construct a building. Cells create more cells and therefore, over time, can construct some very large organisms like trees and whales.

Characteristics of Living Things

Living things have movement. This movement can be quick or very slow. Animals can walk, run, swim, fly or slither, while plants bend toward the sun and reach out roots to find water. These onion cells demonstrate how cells can build a body much like bricks build our school.

All living things have a metabolism.

  1. Nutrition The intake and use of nutrients. Example, we think HIV causes Aids because of many observations showing a correlation of the two.
  2. All living things have a metabolism. Because they share so much in common, organisms of a family are said to be related to each other.
  3. When using taxonomy to name an organism, the genus is used to determine the first part of its two-part name. Cells are the basic building blocks of living things.
  4. A tree that bends toward the sun is also responding to the environment. Plants give off excess oxygen as a waste.

Metabolism is the term that refers to way which living things utilize food and oxygen to create energy for survival, and wastes as by-products. Ingestion - all living things need food, whether they take food in or produce it themselves photosynthesis.

For example, animals eat food, while plants take in carbon dixide and water to create their own food. Digestion - it is this process that turns the food we eat into a form that can be used in our cells. Think about how many organs we have to make this happen. We begin digestion in the mouth, and it continues in our stomach and intestines. Our liver and pancreas also play a large role in processing our food into a form our cells can use. Respiration - although we think respiration is merely breathing, there is much more to the story.

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Respiration on a cellular level is really about generating energy for the cell and untimately you to survive. The mitochondria in the cell chemically combine the food and oxygen we eat and breathe into ATP, or energy for the cell to grow and thrive on. Excretion - Through ingestion, digestion and respiration there are many left-overs and by-products that need to be removed from the cell.

This is very much like the garbage we create in our home.

  • Living things have movement;
  • See links below The 7 Characteristics of Living Things Below is an example of the 7 Characteristics ofl iving things, using the earthworm as an example.

Emptying the garbage in hour house is like excretion for living things. Animals exhale carbon dioxide and urinate the blood's wastes, which are just a few examples.

  • Humans are in the Hominidae Family;
  • It may surprise you to learn that most plants reproduce sexually;
  • Characteristics such as appearance, reproduction, mobility, and functionality are just a few ways in which living organisms are grouped together.

Plants give off excess oxygen as a waste. Ducking to avoid a snowball proves you can respond to your environment. This is an obvious characterisic for most living things. Even when living things reach adulthood, growth is also evidenced in other ways. Exercise grows muscle tissue, while thinking encourages growth of brain cells. A tree that bends toward the sun is also responding to the environment.

All living things respond in some way to the environment that surrounds them. You might duck to miss a thrown snowball, or sweat when you are hot. A plant may wilt from lack of water, or bacteria may grow in response to a warm, moist environment. Reproduction All species have a method of reproduction. Reproduction may be asexual, meaning one parent without gender, or sexual where male and female cells join to create a unique individual.

  1. Cell division - the orderly formation of new cells.
  2. Some earthworms are also able to regrow small parts of their body that have been lost or injured. All living things respond in some way to the environment that surrounds them.
  3. Earthworms use circular and longitudinal muscles to move through soil or along surfaces. Ingestion - all living things need food, whether they take food in or produce it themselves photosynthesis.
  4. Genus Genus is a way to describe the generic name for an organism. Cell division - the orderly formation of new cells.

It may surprise you to learn that most plants reproduce sexually.