Biology Ch.1

Natural selection

: is a mechanism for evolution; variation of a feature, certain versions are advantageous; it is heritable.

Darwin

was not the first to propose evolution.

Natural selection

: is a mechanism for evolution; variation of a feature, certain versions are advantageous; it is heritable.

Darwin

was not the first to propose evolution.

Life

is constrained by the properties of chemistry and physics.

Biosphere

: all ecosystems together (Earth) : all ecosystems together (Earth)

Biology

is the study of life.

Reductionism

: the general approach of biochemistry.

Deductive Reasoning

: from general to specific ideas.

Inductive Reasoning

: from specific ideas to general ideas.

Genome

: entire set of DNA instructions.

Gene

: particular segment of DNA or discrete unit of inheritance.

Population

: particular species in a particular place.

Dependent Variable

: result or what you measure.

Gene Theory

: organisms have coded info that determine form, function and to some extent behavior.

Independent Variable

: the one that we change.

Energy Utilization (reactions in a cell

exergonic)

Population

particular species in a particular place

Community

interacting population

Ecosystem

community plus physical environment

Inductive Reasoning

from specific ideas to general ideas

ex

establishing a cell theory

Deductive Reasoning

from general to specific ideas

Independent Variable

the one that we change

Dependent Variable

result or what you measure

Scientific Theory

elevating conclusions to a level of theory

Evolution Theory

common ancestor an adapted

Biogenesis Theory

life only comes from life

Gene Theory

organisms have coded info that determine form, function and to some extent behavior

Natural selection

is a mechanism for evolution; variation of a feature, certain versions are advantageous; it is heritable

Genome

entire set of DNA instructions

Gene

particular segment of DNA or discrete unit of inheritance

Reductionism

the general approach of biochemistry