Biology chapter 1 study guide
Consider the following scenarios and answer the questions.
A gecko lives in the rainforest, the trees, plants, and other animals that live with the gecko(s) make up what biological group?
This is a community
A pride of lions on the savannah are running low on water and the food source is slowly being depleted. Another pride of lions live within the same region of the first and eventually come across a same carcass for food. What relationship do the two prides have with one another?
This relationship is a competitive relationship
Answer the following questions as completely as possible
What is science?
A way of gaining knowledge about the natural world that starts with a question that will always be answered with evidence and logic.
What is a statement that describes what always happens under certain conditions in nature?
Scientific law.
What is the scientific method?
The process followed when conducting a scientific investigation.
What are the 4 principles of biology?
Cell theory, gene theory, homeostasis, and evolution
To be a living thing, what are the 6 characteristics needed?
Must respond to the environment, grow and develop, produces off spring, maintain homeostasis, include complex chemistry, and be composed of cells.
Name the levels of composition of an organism.
Cell, tissue, organ, organ system, and organism
What was Darwin's theory?
The theory of evolution
What is a ecosystem?
An ecosystem consists of all the living things in a given area, together with the nonliving environment.
Why isn't a atom the smallest living thing?
Because an atom isn't living.

What is the first step in the scientific method?
Making observations
What is a hypothesis
A possible answer to a scientific question, but it isn
’ t just any answer. A hypothesis must be based on scientific knowledge, and it must be logical.
The following terms are essential to an understanding of biological science
Homeostasis- the process of keeping a stable internal environment.
Cell- the basic unit of the structure and function of living things.
Symbiosis- a close relationship between organisms of different species in which at least one organism benefits.
Biosphere- a part of the earth where all life exists.
Biodiversity- the diversity living things.
Competition- relationship between living things that depend on the same resource.
Organism- individual living thing, composed of organ systems.
Evolution- theory that states that living things change through time.
Reproduction- the process in which living things give rise to offspring.
Tissue - group of cells of the same kind.
Organ - structure composed of one or more types of tissues.
Organ system- group of organs that work together to do a certain job.
Biology - the study of life; living things.

Competition - a relationship between living things that depend on the same resources.