McGraw-Hill Biology Ch. 1 Scientific Study of Life
Terms in this set (26)
The elements are composed of atoms. Basic unit of matter. Composed of protons, neutrons, and elections.
Two or more atoms joined by chemical bonds.
Organized or specialized structures within a living cell that performs a specialized function.
Smallest unit of life that can function independently.
Group of cells that interact and perform a specific function.
Two or more tissues that interact and function as an integrated unit.
Two or more physically or functionally linked organs.
Interbreeding members of the same species that occupy the same region.
Part of Earth where life can exist.
Arise from interactions among the parts that make up an organism.
An organism that is able to form food/energy from simple inorganic substances.
An organism that gets food/energy by eating organic material (plants or animals). Ex: humans
An organism that gets food/energy by eating organic material. Ex: fungi
Ability of organisms to maintain a steady internal environment despite changes in the external environment. Ex: temperature, blood pressure, blood sugar
Form of reproduction in which offspring come from only 1 parent. Yields virtually identical offspring. Ex: starfish, coral
Form of reproduction in which offspring come from 2 parents. This creates genetic diversity which aids in evolution.
Process by which organisms with inherited traits that increase the chance of survival and reproduction are the ones that survive and reproduce.
Result of natural selection. Features that enhance reproductive success.
natural selection explains how common ancestry unites all species, producing diverse organisms with many similarities.
the factor that the investigator manipulates.
measurement that the investigator makes to determine the outcome of an experiment. Influenced/not influenced by the independent variable.
held constant for all subjects in an experiment.
Lists in order from smallest (least inclusive) to largest (most inclusive)?
Organelle ‹ Cell ‹ Organ ‹ Individual ‹ Population
Because plants extract nutrients from soil and use sunlight as an energy source, they are considered to be
Evolution through natural selection will occur most rapidly for populations of plants that
reproduce sexually and live in an unstable environment.
In an experiment to test the effect of temperature on the rate of bacterial reproduction, temperature would be the