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ENSC 200 Final Exam Prep Questions Solved 100% Correct| Verified
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ENSC 200 Final Exam Prep Questions Solved100% Correct| Verified
4 Eras of Environmental History in North America - ✔✔1) Pre-Columbian Era
2) Colonial Era
3) Conservation Era
4) Environmental Era
Pre-Columbian Era - ✔✔- Practiced hating and gathering, burned and cleared fields,
planted crops
- Small populations and simple technology resulted in low environmental impact
- Most people had a deep respect for the land and its animals and did not believe in land
ownership
Columbian Settlement Era - ✔✔- 1607-1890
- Developed myth of superabundance
- Conquered groups of Indigenous people, took over the land, urged people to spread
across the continent
Myth of Superabundance - ✔✔- View most of the content as having vast and
seemingly inexhaustible resources
- Saw land as a hostile and dangerous wilderness to be conquered and managed for
human use
Conservation Era - ✔✔- 1832-1960
- People began to recognize that nature should be conserved to a certain extent
- Establishment of national parks in efforts made to save certain species
, - Idea that parks were to be left unimpaired for future generations
Environmental Era - ✔✔- 1960-present
- People began to understand the environmental impact of air pollution
- Growing number of citizens organized to demand political leaders to enact laws and
policies to curtail pollution (environmental movement)
Synergistic Interaction (Synergy) - ✔✔- Occurs when two or more processes interact
so that the combined effect is greater than the sum of their separate effects
3 Types of Building Blocks that Make Up Elements and Compounds - ✔✔1) Atoms
(the smallest unit of matter)
2) Ion (an electrically charged atom or combination of atoms)
3) Molecule (a combination of two or more atoms of the same or different elements
held together by chemical bonds)
3 Major Types of Organic Molecules - ✔✔Complex carbohydrates, proteins, and
nucleic acids
Proteins - ✔✔Formed by linkages of monomers called amino acids
Nucleic Acids - ✔✔Formed by linkages of monomers called nucleotides (DNA and
RNA)
Chromosome - ✔✔- Combinations of genes that make up a single DNA molecule,
together with a number of proteins
- Each chromosome typically contains thousands of genes
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