Biotic matter Study guides, Class notes & Summaries

EXAM 1 CH 1-3 ENVIRONMENTAL SCIENCE QUESTIONS & ANSWERS 2023/2024 What is the world's current total population? - ANSWER-7 billion In 1987 UN World Commission on Environment and Sustainability introduced the concept of what as a necessary focus for maintaining sustainability? - ANSWER-Human well being Living and nonliving parts and the processes that connect them make up - ANSWER-ecosystem What is biotic factor..? Give examples - ANSWER-living components of an ecosystem. They are ...

Abiotic - Non-living Biotic - living things Biology - The study of life Biome - A group of ecosystems with similar climates and organisms Cell - Basic unit of life Community - All the different populations that live together in an area Ecosystem - A biological community of interacting organisms and their physical environment. Macromolecule - A very large organic molecule composed of many smaller molecules-technically polymers Molecule - A group of atoms bonded together Organ - A collec...

soil - ANSWER--layer(s) of generally loose mineral and/or organic material -affected by physical, chemical, & biological processes -usually hold liquids, gases and biota and support plants -non-renewable resource soil functions - ANSWER-anchorage for plants storage and recycling of nutrients regulate water supply habitat for many organisms engineering medium transformations - ANSWER--weathering of primary minerals to clay & hydrous oxides -humification of organic mat...

2 examples of changes in global N cycle caused by humans + why problematic - 1. Runoff from agricultural areas causes dead zones - EX: parts of the ocean with no oxygen so nothing can live in it 2. Acid rain due to emissions from power plants—affects soils negatively 3 major forest formations (tree type, precipitation, temperature, and water balance) - 1. Tropical and subtropical rainforest - Evergreen trees - Positive water balance - High annual rainfall and temperatures (because they...

WGU C190 INTRO TO BIOLOGY 311 QUESTIONS AND ANSWERS Abiotic - answer Non-living, may be within or made by a living organism. Biotic - answer Living. Matter is considered ______ if it was ever alive at some point in time Atom - answer Smallest level. The basic unit of matter. Consists of a dense nucleus surrounded by electrons. Molecule - answer Second level. A chemical structure consisting of at least two atoms held together by a chemical bond. Macromolecule - answer Third level. ...

Define the term biodiversity - diversity of important ecological entities that span multiple spatial scales, from genes, to species to communities - biological diversity encompasses all species of plants, animals, and microorganisms, and the ecosystems and processes of which they are part Explain how the terms species, richness, evenness, and diversity are related Species richness: a count of all the different species in a prescribed area Species evenness: a measure of the rareness or c...

WGU C190 Introduction to Biology Latest Update Graded A Biology the scientific study of life Characteristics of Life 1. Be made of materials organized in a hierarchical pattern. 2. Use energy and raw materials to survive 3. Sense and respond to changing environments and maintain internal stability, or homeostasis. 4. Grow, develop, and reproduce. 5. Be part of a population that evolves. The Cell the smallest unit that displays all characteristics of life Matter Any substance that has mass and...

Biotic (living) Made of materials organized in a hierarchical pattern. Use energy and raw materials to survive. Sense and respond to changing environments and maintain internal stability, or homeostasis. Grow, develop, and reproduce. Be part of a population that evolves. Anything not containing all components of a biotic subject are considered abiotic, or non living. Atom basic unit of matter. are made of even smaller subatomic particles called protons, neutrons, and electrons...

Science - It is the pursuit and application of knowledge and understanding of the natural and social world following a systematic methodology (Scientific Method) based on evidence Biology - It is the scientific study of life. It is a natural science with a broad scope but has several unifying themes that tie it together as a single, coherent field Chemistry - the branch of science concerned with the substances of which matter is composed, the investigation of their properties and reactions,...

model correct answers a simplified description designed to show the structure or working of an object, system or concept. open system correct answers type ***** in which both matter and energy are exchanged with its surroundings closed system correct answers type ****** in which energy but not matter is exchanged with its surroundings Gaia hypothesis correct answers developed by James Lovelock, compares the Earth to a living organism in which feedback mechanisms maintain equilibrium ...