The smallest units of life
What are cells?
Maintenance of a relatively stable internal environment no matter what is going on outside
What is homeostasis?
Subjects in experiment treated just like the test group except they are not subjected to one particular variable
Unstable isotopes that don't exist for long time periods
Radioisotopes
Atoms donate or accept electrons to satisfy the Octet Rule
What is an ionic bond?
NaCl is an example of a..
All of the chemical reactions occurring in the body necessary to sustain life
What is metabolism?
Variable that is manipulated during an experiment and which axis it is plotted on
Location of electrons
Exception to the Octet Rule
What are Hydrogen and Helium? (If the first shell is the outer shell- it can only hold 2 electrons)
All of the different species occupying a given location
What is community?
Changes in allele frequencies in populations of organisms over time
What is evolve?
A broad explanation of an aspect of the natural world that must be testable but cannot be proven true
What is a theory?
Number of protons an atom contains
A charged atom
What is an ion?
Layers of different tissue types working together to provide a specific function
What is an organ?
Changes in the state of cells, tissues, organs, and organisms that result in organisms with a defined set of characteristics
What is development?
Type of questions scientists attempt to answer
What are causal questions?
Electrons in the outermost shell
What are valence electrons?
Types of bonds where partial charges can develop
What are polar covalent bonds?
Interactions between organisms and the living and nonliving components of their environment
What is an ecosystem?
Name all 8 characteristics of living things
What is organization, homeostasis, metabolism, growth, development, reproduction, evolve, and respond to stimuli?
Name the 6 steps in the scientific method
What is observation, hypothesis, experimentation, data analysis, conclusion, and theory?
Atoms of two or more different elements bonded together
What are compounds?
Bonds that are easily broken in water
What are ionic bonds?