Aquatic ecosystems Study guides, Class notes & Summaries

What is extinction? correct answer: The loss or death of a species What is mass extinction? correct answer: A decline in biodiversity greater than the background extinction rate What is background extinction? correct answer: Background extinction occurs when certain populations are reduced to zero because of normal environment change, emerging disease, predation pressure, or competition with another species How are mass extinctions detected and how many have been detected? correct an...

CHAPTER 3—ECOSYSTEMS: WHAT ARE THEY AND HOW DO THEY WORK? MULTIPLE CHOICE 1. Scientists estimate that tropical rain forests contain up to half of the earth’s land plants and animal species. What percentage of the world’s land surface do tropical rain forests cover? a. 2 b. 4 c. 8 d. 10 e. 12 ANS: A PTS: 1 TOP: 3-0 Core Case Study: Tropical Rain Forests Are Disappearing KEY: Bloom's: Remember NOT: New 2. The disappearance of the tropical rain forests is an importa...

Chapter 03 - Life in Water Multiple Choice Questions 1. Which of the following vertical aquatic zones is correctly ordered? A. bathypelagic, mesopelagic, epipelagic, abyssal, hadal B. epipelagic, mesopelagic, bathypelagic, abyssal, hadal C. abyssal, bathypelagic, hadal, mesopelagic, epipelagic D. epipelagic, bathypelagic, mesopelagic, hadal, abyssal E. mesopelagic, abyssal, epipelagic, hadal, bathypelagic Bloom's Level: 2. Understand Learning Outcome: 03.02.01 List the major aquatic envi...

Test bank for Ecology: The Economy of Nature 9e 9th Edition by Rick Relyea. ISBN-13: 5542 Full Chapters test bank included Chapter 1 An Introduction to Ecology 1.1 Ecological Systems Exist in A Hierarchy of Organization Individuals Populations Communities Ecosystems The Landscape The Biosphere 1.2 Physical and Biological Principles Govern Ecological Systems Conservation of Matter and Energy Dynamic Steady States Evolution 1.3 Different Organisms Play Diverse Roles in Ecological...

Ch 8 Aquatic Ecosystems Review Questions with Explanations of Answers with complete Solution 2024

Texas Aquatic Ecosystems- Living in Water EXAM REVISED [100% PASS] /verified/ Aquatic Species *Ans* Organisms that live in water habitats. Adaptation *Ans* A trait that helps an organism survive and reproduce Ectothermic *Ans* body temperature that changes with the environment Endothermic *Ans* dependent on the internal generation of heat Gills *Ans* The organ of fish that contain capillaries that take up dissolved oxygen and release carbon dioxide Buoyancy *Ans* being able to float o...

BIOL 301 final (previous quizzes) with Solutions net primary productivity is calculated as GPP - respiration units of GPP kJ/m2/y 6 Ways to Show Appreciation for Your Child's Teacher 0:29 / 0:54 which of the following factors is NOT used for quantifying primary productivity over time? change in consumer biomass Which is the portion of energy that an organism uses to maintain its body temperature? respired Terrestrial NPP is greatest in _____ ecosystems, and ...

intro to life in the sea exam #2 questions & answers 2024/2025 two groups of marine plants - ANSWERSalgae (incl. phytoplankton) & seagrasses algae are non-vascular - ANSWERS-they lack connectivity between the parts of its body -It does not pump nutrients Macroalgae - ANSWERSmacroscopic, multicellular, benthic, marine animals like seaweed how do macroalgae stay in place? - ANSWERSThey have holdfasts that act as an anchor Are macro algae holdfasts considered roots? - ANSWERSNo be...

Iowa Commercial Pesticide Applicators: Aquatic Pest Control (Category 5)C1: Describe the value of plants in aquatic ecosystems - correct answer They are primary producers in the aquatic food chain, produce oxygen, provide shelter & sites for spawning, can dampen the force of waves, use nutrients & improve water clarity, stabilize the bottom material C1: Identify specific problems caused by aquatic weeds - correct answer 1) Restriction of recreational activities, 2) foul taste & odor, 3) hinde...

Iowa Commercial Pesticide Applicators Questions with complete solution 2024C1: Describe the value of plants in aquatic ecosystems - correct answer They are primary producers in the aquatic food chain, produce oxygen, provide shelter & sites for spawning, can dampen the force of waves, use nutrients & improve water clarity, stabilize the bottom material C1:Identify specific problems caused by aquatic weeds - correct answer 1)Restriction of recreational activities, 2)foul taste & odor, 3)...