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ap environmental science - q&a: units 1-7 & frqs

originally streamed in 2019 with Jessie HowingtonTeacher
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Q&A session answering your AP Environmental Science questions across all units. Jessie Howington covers ecosystems, biodiversity, populations, earth systems, biogeochemical cycles, and exam strategy. Get clear explanations on carbon and nitrogen cycl ...more

curriculum note

This video references the 2020 COVID-modified AP exam format (45-minute, all-FRQ, at-home exam covering only Units 1–7), which is no longer current. The standard AP Environmental Science exam format has since been restored.

covered in this stream

units
Unit 1 – The Living World: EcosystemsUnit 2 – The Living World: BiodiversityUnit 3 – PopulationsUnit 4 – Earth Systems & ResourcesUnit 9 – Global Change
topics
1.4 The Carbon Cycle1.5 The Nitrogen Cycle1.10 Energy Flow and the 10% Rule1.11 Food Chains and Food Webs1.2 Terrestrial Biomes2.2 Ecosystem Services2.7 Ecological Succession2.1 Introduction to Biodiversity3.1 Generalist and Specialist Species3.2 K-Selected r-Selected Species3.4 Carrying Capacity3.6 Age Structure Diagrams3.9 Demographic Transition3.7 Total Fertility Rate4.1 Tectonic Plates4.9 El Niño and La Niña9.1 Stratospheric Ozone Depletion

timestamps

  • 0:00

    Q&A Session

  • 2:51

    Introduction and Guidelines

  • 3:56

    AP Exam Updates

  • 4:58

    Upcoming Reviews

  • 5:31

    Exam Format Changes

  • 6:36

    Unit 1 Ecosystems

  • 7:37

    Unit 2 Biodiversity

  • 8:08

    Unit 3 Populations

  • 9:09

    Unit 4 Earth Systems

  • 10:10

    Unit 5 Land Use

  • 10:41

    Unit 6 Energy Resources

  • 11:12

    Unit 7 Atmospheric Pollution

  • 12:15

    Carbon Cycle Question

  • 13:17

    Chemical Equations Overview

  • 17:27

    Forests as Carbon Stores

  • 19:32

    Energy in Ecosystems

  • 21:37

    Nitrogen Cycle Process

  • 23:43

    Reading Climographs

  • 27:25

    Temperate Biomes

  • 29:18

    Species Competition

  • 30:21

    Bull Trout Passage

  • 33:27

    Biodiversity Trends

  • 33:58

    Ecosystem Services

  • 35:04

    Ecological Succession

  • 36:08

    Wildfire Impacts

  • 37:43

    Primary vs Secondary Succession

  • 39:52

    Biodiversity Resistance

  • 41:23

    Generalist vs Specialist

  • 43:32

    Carrying Capacity Graph

  • 46:14

    Age Structure Diagram

  • 49:24

    Demographic Transition

  • 52:05

    Transform Fault Motion

  • 54:40

    Plate Boundary Types

  • 57:51

    Experimental Design Control

  • 59:58

    El Nino Explanation

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Study Content & Tools

Study GuidesFRQs + AI ScoringAP Essay Grader for StudentsAI Grading for TeachersPractice QuestionsGlossaryScore Calculators

Company

What's New?PricingBulk DiscountsTestimonialsFAQsEmail us

Resources

AP Exam Schedule 2027AP ClassesAP ClassroomEasiest AP ClassesHardest AP ClassesAP vs IBAP vs Dual EnrollmentAP vs Honors ClassesAP Scholar Awards

history

🌎 ap world history🇺🇸 ap us history🇪🇺 ap european history

social science

✊🏿 ap african american studies🗳️ ap comparative government🚜 ap human geography💶 ap macroeconomics🤑 ap microeconomics🧠 ap psychology👩🏾‍⚖️ ap us government

english & capstone

✍🏽 ap english language📚 ap english literature🔍 ap research💬 ap seminar

arts

🎨 ap art & design🖼️ ap art history🎵 ap music theory

science

🧬 ap biology🧪 ap chemistry♻️ ap environmental science🎡 ap physics 1🧲 ap physics 2💡 ap physics c: e&m⚙️ ap physics c: mechanics

math & computer science

🧮 ap calculus ab♾️ ap calculus bc📐 ap precalculus📊 ap statistics💻 ap computer science a⌨️ ap computer science p

world languages

🇨🇳 ap chinese🇫🇷 ap french🇩🇪 ap german🇮🇹 ap italian🇯🇵 ap japanese🏛️ ap latin🇪🇸 ap spanish language💃🏽 ap spanish literature

go beyond AP

high school exams

✏️ PSAT🎓 Digital SAT🎒 ACT

honors classes

🍬 honors algebra II🫀 honors anatomy🐇 honors biology👩🏽‍🔬 honors chemistry💲 honors economics📐 honors geometry⚾️ honors physics📏 honors pre-calculus📊 honors statistics🗳️ honors us government🇺🇸 honors us history🌎 honors world history

college classes

👩🏽‍🎤 arts👔 business🎤 communications🏗️ engineering📓 humanities➗ math🧑🏽‍🔬 science💶 social science

hs classes

🏛️ alabama history⛰️ appalachian studies🌴 california history🌍 earth science🌐 ethnic studies🐊 florida history🍑 georgia history🌎 global studies🌺 hawaiian studies📰 journalism🪶 native american studies🌵 new mexico history🤠 oklahoma history⚗️ physical science🎙️ speech and debate🤝 texas government🤠 texas history🌲 washington state history🕊️ world religions
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© 2026 Fiveable Inc. All rights reserved.

AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.