Body Systems
This system includes the bones of the body
skeletal system
This shows the flow of energy in an ecosystem, and is made up of many food chains
food web
This is any living thing
organism
This is a double helix molecule that contains the genetic code for a living thing
DNA
This is any close interaction between two organisms
symbiosis
This body system breaks down nutrients from food
digestive system
These are the living, or once living, parts of an ecosystem
biotic factors
This is the smallest unit of structure in living things
cell
This is the passing of traits from parents to offspring, and was studied by Gregor Mendel
heredity/inheritance
This is a type of relationship in which one organism benefits, and one organism is harmed
parasitism
This body system sends electrical and chemical signals, and acts as a communication system through the body.
nervous system
This is anything that causes a population to decrease or stop growing
limiting factor
This is a group of tissues working together for a specific function
organ
This is the threadlike structure that contains the genetic code in the form of DNA, and is found in the nucleus
chromosomes
This is the struggle among organisms to survive as they use the same limited resources
competition
This body system defends the body against foreign invaders like bacteria and viruses
immune system
This is an organism that makes its own food
producer
This is all of the individuals of a particular species living in the same area
population
This is the physical trait seen in an organism, as coded for by its alleles
phenotype
This is a type of relationship in which one organism is helped, and the other is not affected in any way
commensalism
This body system produce hormones that are needed for development as well as everyday functions.
endocrine system
This is an organism that breaks down dead organisms for nutrients
decomposer
This is made up of all the populations of different species living in an area
This is the molecule that carries the genetic code from the nucleus to the cytoplasm and ribosome, where it can be used to make proteins
messenger RNA
This is the type of relationship in which one organism hunts and consumes another for nutrients
predation