Tutor and Freelance Writer. Science Teacher and Lover of Essays. Article last reviewed: 2019 | St. Rosemary Institution © 2010-2020 | Creative Commons 4.0

Foundations to 600 CE Trade Routes and their Connections

Route: Indian Ocean Advantages: Changeable, predictable monsoon wids lead to reliable schedules; great variety and amound of goods can be carried via ship (emporium trading); seaborne trade usually faster than land routes Geographical Scope: East Africa, Arabia, Inida, S.E. Asia; canal between Red Sea and Nile would eventually connect Mediterranean Commerce: Aromatic (incense), spices, gold,…

Political and State Power in Great River Valley Societies

State Leader & Symbolic Role Method of Unification Ruler’s Means of Control Egypt Pharoh (herdsman) sometimes functions as god. Organizing labor to manage floods; distribution of food; use of Nile River as highway to unify, control. Pharaoh’s commands, policies function as law, regarded as devine. Mesopotamia city-states King/Royals, mediate, lead, worship, receive oracles. Organizing labor;…

Biotic Relationships: Commensalism, Niche, Parasitism

Niche An organism’s ecological ROLE in the environment (NOT HABITAT!) All components of lifestyle and how they affect other organisms Three Types of Symbiosis Mutualism both species benefit Commensalism one species benefits, the other is unaffected Parasitism one species benefits, the other is harmed Lichen Lichen is really two organisms: algae and fungus. The fungus…

KINGDOM ANIMALIA: General Characteristics of Animals

Characteristics of Life Living things are organized. Living things are made up of cells. Living things metabolize. Living things maintain an internal environment. Living things grow. Living things respond. Living things reproduce. Living things evolve. Seven Levels of Taxonomic Classification Kingdom Phylum Class Order Family Genus Species Kingdom Animalia Characteristics All animals are multicellular, eukaryotic…

Phylum Arthropoda, Echinodermata, Chordata

The largest animal phylum- 1 million species of crabs, shrimp, spiders, scorpions and insects make up this phylum Have jointed appendages; segmented bodies Exoskeletons made of chitin Molt;  have heads with many sensory organs. Bilateral Simple and complex eyes that detect only light intensity and form images Antennae that smell chemical substances in the environment…

Conservation Biology: Extinction, Habitat Loss, Invasive Species, Overexploitation

SPECIES EXTINCTION Species can become extinct: Locally: A species is no longer found in an area it once inhabited but is still found elsewhere in the world. Ecologically: Occurs when so few members of a species are left they no longer play its ecological role. Globally (biologically): Species is no longer found on the earth.…