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35 Cards in this Set

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