GCU BIO-220 Environmental Science Test 1 Questions With Correct Answers!!

Abiotic Factors - Answer-The physical factors such as soil, rock, temperature, moisture, sunlight. Aldo Leopold - Answer-Pinchot's student; wrote "The Land Ethic" and said "we abuse land because we regard it as a commodity belonging to us" Allopatric Speciation - Answer-The new population evolves independently of the first, creating a new species. Anthropocentric - Answer-The belief the humans hold a special place in nature, decisions are based around human needs and interests. Benthic - Answer-Bottom Benthos - Answer-Bottom Biocentrism - Answer-Life centered, all organisms have some intrinsic values and rights. Biodiversity is the highest ethical value in nature. Individuals and populations are the basic units of biodiversity. Biome - Answer-Large area that has a particular climate, and particular species of plants and animals that live there Biosphere - Answer-The part of the Earth that supports life Biotic Factors - Answer-The living factors such as all plants & animals living in an area. Blind experiment - Answer-An experiment in which the subjects do not know whether they are members of the experimental group or the control group.Bottleneck Effect - Answer-Whether an organism survives does not depend on any characteristic. ex: An avalanche wipes out all but a patch of plants behind the shelter of a large outcrop. Can photosynthesis occur in the benthic level of the ocean? - Answer-No, there is no sun at the bottom. Photosythesis occurs near the coast. Carbon Footprint - Answer-The amount of CO2 and fossil fuels that are in the atmosphere. Carrying Capacity - Answer-The maximum population size that can be supported by the available resources. There can only be as many organisms as the environmental resources can support. Cellular respiration - Answer-Releases chemical energy from sugars and other carbon-based molecules to make ATP when oxygen is present - Glucose (sugar) + Oxygen -- Water + CO2 + Energy (ATP) Closed System - Answer-self contained, exchanges no matter or energy with the outside Community - Answer-Populations of different species that live in the same place. Competitive Exclusion - Answer-No two species can occupy the same ecological niche at the same time. The one that is more efficient at using resources will exclude the other Components of Photosynthesis - Answer-6CO2 + 6H2O + light energy + chlorophyll ------ C6H12O6 + 6O2 carbon dioxide + water + light energy + chlorophyll ------ sugars + oxygen Conservation - Answer-Protecting and preserving natural resources and the environmentConservation Genetics - Answer-Molecular genetics can identify species that are endangered and protected but still being bought and sold, often the products on the market cannot be identified by sight but can be identified using genetics. Deciduous Forest - Answer-Temperate regions support lush summer plant growth when water is plentiful.Deciduous trees lose their leaves in winter as an adaptation to freezing temperatures