Bio 182 Exam 1 Complete Study Guide With Solved Questions

BIO 182 EXAM 1 COMPLETE STUDY GUIDE
WITH SOLVED QUESTIONS

◉ At what levels of life are focused on while studying ecology?
Answer: -Biosphere
-Ecosystems
-Communities
-Populations
-Organisms


◉ Biotic factor
Answer: Interactions among living things


◉ Abiotic factor
Answer: Interactions between organisms and their nonliving
environment


◉ What is a biome?
Answer: A major aquatic or terrestrial life zone


◉ What are aquatic biomes characterized by?

,Answer: The physical environment


◉ What are terrestrial biomes characterized by?
Answer: The vegetation type


◉ What are the 2 major classes of aquatic biomes?
Answer: -Freshwater biome
-Marine biome


◉ What % of earth does fresh water cover?
Answer: Less than 1%


◉ Photic zone
Answer: -Light is available for photosynthesis
-Shallow water near the shore
-Upper layer of water away from the shore


◉ Aphotic zone
Answer: -Deeper water
-Light levels are too low to support photosynthesis


◉ Benthic realm

, Answer: -Bottom of all aquatic biomes
-Made up of sand and organic and inorganic sediments
-Occupied by communities of organisms call benthos


◉ Near the source of steam characteristics
Answer: -Clear
-Cold
-Swift
-Low in nutrients


◉ Downstream characteristics
Answer: -Murkier
-Warmer
-Slower
-Higher in nutrients


◉ What is the open water part of the ocean called?
Answer: Pelagic realm


◉ How deep is the photic zone in the ocean?
Answer: Maximum of 200 m