Flashcards in Chapter 1 Deck (40):
Seven properties and precesses are associated with life
1) Order, 2) Reproduction, 3) Growth and Development, 4) Energy Processing, 5) Regulation, 6) Response to the environment, 7) Evolutionary Adaptation.
All of the environments on Earth that support life. (Florida)
Consists of all the organisms living in a particular area as well as the physical components. (Florida Everglades)
The entire array of organisms in an ecosystem. (All organisms in this wetland ecosystem)
Includes all the individuals of a particular species living in an area. (All Alligators living in the wetlands)
An individual living thing. (Alligator)
Made up of several different tissues.(Brain)
Each in turn made up of a group of similar cells that perform a specific function. (Nervous tissue)
is the fundamental unit of life.
Is a cluster of small chemical units called atoms held by chemical bonds.
The dynamics of ecosystems include two major processes
1) The recycling of chemicals and 2) The flow of energy
Most basic chemicals necessary for life
Carbon Dioxide, Oxygen, Water, and various minerals.
is the chemical substance of genes.
the units of inheritance that transmit information from parents to offspring.
Genes that are grouped into very long DNA molecules, which control all the activities of a cell.
made up of two long chains called stands, coiled together into a double helix.
The strands are made up of four kinds of chemical building blocks
DNA is first replicated or coped, the double helix unzips and new complementary strands assemble along the separated strands.
blueprints for making proteins
The DNA of genes
serve as the tools that actually build and maintain the cell and carry out its activities.
is the entire “library” of genetic instructions that an organism inherits.
are the most diverse and widespread prokaryotes.
prokaryotes live in Earth;s extreme environments.
all the organisms with eukaryotic cells.
are a diverse collection of mostly single celled organisms. (has multiple kingdoms)
can be defined as the process of change that has transformed life on Earth from its earliest beginnings to the diversity of organisms today.
“On the Organ of Species by Means of Natural Selection” made him synonymous with the concept of evolution.
a mechanism for evolution. Darwin started with two observations, from which he drew two inferences.
Individuals in a population vary in their traits, many of which are inherited from parents to offspring.
Overproduction of offspring.
All species can produce far more offspring than the environment can support.
Unequal reproductive success
Individuals with heritable traits best suited to the local environment are more likely to survive and reproduce than are less well-suited individuals.
Accumulation of favorable traits over time
As a result of this unequal reproductive success over many generations, a higher and higher proportion of individuals in the population will have the advantageous traits.
a proposed explanation for a set of observations.
is much broader in scope than a hypothesis
Is the process of describing nature without any preconceived expectations.
Hypothesis driven science
Involves constructing a specific, testable explanation for a phenomenon based on a set of observations.
Observation, question, hypothesis, prediction, experimentation.
general to specific, is generally used in establishing a test of a hypothesis.
one that is designed to compare an experimental group with a control group