Biology Chapter 1 2
Terms
undefined, object
copy deck
- biology
- the study of all living things
- cell
- the basic unit of life
- DNA
- the hereditary information that is in the form of a large molecule
- ecology
- the study of the interactions of organisms witho ne another and with their environment
- ecosystems
- environmental communities
- evolve
- change
- evolution
- all the changes that have formed life on Earth from its earliest beginnings to the diversity that characterizes it today
- gene
- a short segment of DNA that contains the instructions for the development of a single trait of an organism
- homeostasis
- the stable level of internal conditions found in all living things
- organism
- living things
- reproduction
- a process when organisms transmit hereditary information to their offspring
- autotroph
- organisms that obtain their energy by making their own food, like plants
- heterotrophs
- organisms that must take in food to meet their energy needs; includes all animals and fungi as well as many unicellular organisms and a few plant species
- cell division
- the formation of two cells from an existing cell
- development
- the process by which an organism grows
- hypothesis
- a statement that explains observations and can be tested
- prediction
- a statement made in advance that states the results that will be obtained from testing a hypothesis, if the hypotheses is supported
- experimenting
- step #5 of the 7 scientific methods
- microscope
- an instrument that produces an enlarged image of an object
- the sun
- where almost all the energy for life on Earth comes from
- asking a question
- step #2 of the 7 scientific methods
- collecting data
- step #3 of the 7 scientific methods
- drawing conclusions
- step #6 of the 7 scientific methods
- hypothesizing
- step #4 of the 7 scientific methods
- implementing scientific methods
- step #7 of the 7 scientific methods
- observing
- step #1 of the 7 scientific methods