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35 Cards in this Set
- Front
- Back
Earth's early atmosphere was changed dramatically by the evolution of:
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photosynthesis
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The theory that life could spring from nonliving matter is called:
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spontaneous generation
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The building up and breaking down of chemical substances necessary for life is called:
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metabolism
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The complex compound that carries the information needed to make proteins is:
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DNA
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The struggle among living things to obtain the resources needed for survival is called:
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competition
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A substance made of a single element?
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diamond
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Carbohydrate is to glucose as:
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protein is to amino acid
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The process of combining oxygen with the products of disgestion to produce energy is called:
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respiration
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Planet Earth is how old?
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4.6 Billion Years
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The theory of spontaneous generates states that life can spring from nonliving matter.
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True
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The process by which an organism puts food into its body is:
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ingestion
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Green plants produce what waste product during photosynthesis?
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oxygen
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Process of getting rid of body wastes is called:
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excretion
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Inorganic compound examples:
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ammonia and water
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Carbohydrates include sugars and starches. (True or False)
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True
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Metabolism
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The sum of all chemical activites essential to life.
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A change in the environment to which all living things reacts is:
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stimulus
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The reaction to stimulus is called a:
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response
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There are two kinds of reproduction?
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asexual - one
sexual - two |
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Living things need _____ for metabolism.
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energy
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The primary source of energy for almost all living things is the:
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SUN
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Homeostasis
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The ability of an organism to keep conditions constant inside its body when the outside environment changes.
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Inorganic compounds
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Do not contain the element carbon.
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Organic compounds
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Do contain carbon.
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The organic compounds important to life are:
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carbohydrates, fats and oils, proteins, enzymes, and nucleic acids.
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DNA
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is considered the "Blueprint" for life as it directs the development of an organism's offspring.
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All living things are made of small units called:
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cells
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Ability to move through the environment is important to all living things to find:
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food, shelter and protection.
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Life Span
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the maximum length of time a particular organism can be expected to live.
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Warm Blooded Animals
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Maintain a constant body temperature. Can be active both day and night and in hot and cold weather. (Dogs, Birds - pant, horses - sweat)
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Cold Blooded Animals
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Body temperature changes with the environment. Reptiles and Fish.
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element
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a pure substance that cannotbe broken down into any simpler/smaller substance. (Ex: diamond)
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compounds
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when two or more elements are chemically joined together. (Ex: Table salt which is sodium and chlorine)
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enzymes
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a special type of protein that regulates chemical activities within the body.
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Nucleic Acid
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organic chemicals such as: DNA (carries message) and RND (reads message). DNA is the blueprint of life.
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