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anything that causes a reaction or change in an organism stimulus
reproduction in which sex cells from two parents unite sexual reproduction
reproduction in which a single parent produces offspring asexual reproduction
an organism that eats other organisms or organic matter consumer
an organism that gets food by breaking down dead organisms or animal wastes decomposer
an organism that makes its own food by getting energy from its surroundings producer
molecules that are made of sugars carbohydrates
large molecules made of smaller molecules called amino acids proteins
a molecule made up of subunits called nucleotides nucleic acids
a lipid that contains phosphorus and that is a structural component in cell membranes phospholipids
the major energy-carrying molecule in the cell ATP
a type of biochemical that doesn't mix with water lipid
the passing of traits from one generation to the next heredity
the sum of all chemical processes that occur in an organism metabolism
a membrane-covered structure that contains all of the materials necessary for life cell
the maintenance of a constant internal state in a changing environment homeostasis
What are the four basic needs of every organism? water, air, a place to live, and food
cells of most living things are made of approximately how much water? 70%
what are two things food gives organisms? energy and raw materials needed to carry on life processes
what do organisms need in a place where they live? all the things they need to survive
name the five building bocks of cells proteins, carbohydrates, lipids, ATP, and nucleic acids
what do organisms do to food in order to use the nutrients in it? break down the food
what are two ways organisms use nutrients from food? to replace cells and build body parts
how do cells use carbohydrates? as a source of energy and for energy storage
molecules made of different kinds of atoms are called what? compounds
nutrients are made up of ____, a substance created when two or more atoms combine. molecules
carbohydrates made of one suger molecule of a few are called? simple carbohydrates
a carbohydate made of hundreds of molecules is called? complex carbohydates
what is the difference between fats and oils? at room temperature, most fats are solids and most oils are liquids.
why are nucleic acids called the bluprints of life? they have all the information needed for a cell to make proteins.
sunlight can be a ___ stimulus
living things are made of ___ cells
explain the difference between asexual and sexual reproduction asexual reproduction is when a sigle parent produces offspring, whereas sexual reproduction is when two parents produce offspring identical to both
homeostasis means containing ___. stable internal conditions
what does the fur coat of a bear have to do with homeostasis keeps it warm and stable in its environment.
Created by: jcarroll8