Скачать или смотреть AP Environmental Science CRAM – Ecosystems & Nutrient Cycles

Complete AP Environmental Science exam prep covering ecosystems, biodiversity, earth systems, pollution, and sustainability. This cram session walks you through the most tested APES concepts to strengthen your understanding before exam day.

Review ecosystem dynamics, population ecology, nutrient cycles, energy flow, and human environmental impact. Perfect for focused exam preparation or reinforcing key topics from Units 1-9.

⏱️ TIMESTAMPS:
0:00 Welcome and Audio Check
0:43 Instructor Introduction
1:16 Session Overview and Recordings
2:17 Upcoming Streams
2:51 About Jenny McLean
3:23 About TA Miriam and Discord
4:57 Poll: Feelings on APES Test
5:33 Introduction to Ecosystems
6:35 Biotic and Abiotic Factors
7:40 Predators, Prey, and Symbiosis
8:43 Mutualism and Commensalism
9:44 Parasitism Examples
10:50 Competition and Limiting Factors
12:53 Resource Partitioning
14:29 Terrestrial Biomes Overview
15:31 Climate vs Weather
17:38 Major Terrestrial Biomes
18:41 Poll: Solar Radiation
20:13 Poll: Cold Ecosystem Description
23:47 Aquatic Biomes Introduction
24:48 Freshwater and Marine Ecosystems
26:27 Poll: Reproduction in Ecosystems
28:01 Estuaries Explained
30:47 Nutrient Cycles Overview
31:20 Carbon Cycle Basics
37:01 Nitrogen Cycle and Fixation
38:35 Phosphorus Cycle and Fertilizers
39:38 Eutrophication Process
43:54 Water Cycle and Availability
47:02 Primary Productivity Concepts
49:12 Poll: Oxygen Generation Source
51:27 Trophic Levels and Energy Flow
52:29 Energy Pyramid Efficiency
57:14 Closing and Social Media
57:44 Poll: Unit 2 Topics
59:01 Session Wrap-Up

📚 WHAT YOU'LL LEARN:
• Ecosystem structure, symbiosis, and competition
• Terrestrial and aquatic biomes
• Nutrient cycles: carbon, nitrogen, phosphorus, water
• Eutrophication and environmental impacts
• Primary productivity and trophic levels
• Energy flow through ecosystems
• Sustainability and conservation examples

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