Ecology/Pop Dynamics
DNA/Protein
Natural Selection
100
What is Ecology?
Ecology is the study of interactions between organisms and their environment.
100
What is Protein Synthesis?
The process by which proteins are made.
100
What is Evolution?
Evolution is the scientific theory that explains how different species of organisms came from common ancestors.
200
What is a Food chain?
Food chains show a single path of energy transfer that can occur in an ecosystem.
200
What is DNA Replication?
Making an identical copy of a strand of DNA
200
What is Natural selection?
The theory that organisms with favorable traits are more likely to survive, reproduce, and pass on their adaptations to their offspring.
300
What are Trophic Level of Food chains?
300
What are the DNA Replication Steps?
1. Original DNA strand unzips Breaks hydrogen bonds between nucleotides
2. New DNA nucleotides are added to each old strand, matching complementary nitrogen bases.
(A to T, G to C)
3. Two semiconservative strands are created- each with half the old strand and half a new strand.
300
What is Reproduction isolation?
Anything that prevents members of a species from producing offspring with members of another population of that species.
400
What are the Levels of Organization?
Species, Population, Community, Ecosystem, Biosphere
400
What is Transcription?
The process by which a strand of mRNA is assembled based on the section of DNA it needs to transport to the ribosome.
400
What is a Genetic variation?
Differences between members of the SAME species. Caused by mutations that produce new alleles for certain genes.
500
What are the types of Relationships in Ecology?
Feeding Relationships (Predator/Prey)
Competition
Symbiotic Relationships
500
What are the Steps of Transcription?
DNA is “unzipped” by an enzyme
mRNA nucleotides are brought to the DNA strand and matched to the DNA bases to build an mRNA strand.
New mRNA strand leaves the nucleus and goes to the ribosome
500
What is Geographic isolation?
Any geographic barrier that keeps a population apart from other members of its species.