diff --git a/_data/authors.yml b/_data/authors.yml
index 985f107..b6bc260 100644
--- a/_data/authors.yml
+++ b/_data/authors.yml
@@ -44,4 +44,12 @@ Cheryl L.:
   links:
     - label: "Request a Session"
       icon: "far fa-life-ring"
-      url: "https://ncvps.upswing.io/up/dashboard/coach/Dva8zlORlC9F5QxaaocoEuJk6yM="
\ No newline at end of file
+      url: "https://ncvps.upswing.io/up/dashboard/coach/Dva8zlORlC9F5QxaaocoEuJk6yM="
+
+Isabel U.:
+  name        : "Isabel U."
+  avatar      : "/assets/images/isabel_u.jpg"
+  links:
+    - label: "Request a Session"
+      icon: "far fa-life-ring"
+      url: "https://ncvps.upswing.io/up/dashboard/coach/miCAWH4UP8G+OywyYEp4U6P~2FX1I="
\ No newline at end of file
diff --git a/_pages/AP Environmental Science/Unit 1/introduction-to-ecosystems.md b/_pages/AP Environmental Science/Unit 1/introduction-to-ecosystems.md
new file mode 100644
index 0000000..075706d
--- /dev/null
+++ b/_pages/AP Environmental Science/Unit 1/introduction-to-ecosystems.md	
@@ -0,0 +1,20 @@
+---
+title: "Introduction to Ecosystems"
+permalink: /resources/apes/introduction-to-ecosystems/
+author_profile: true
+author: Isabel U.
+header:
+  overlay_image: /assets/images/apes_header.jpg
+  overlay_filter: 0.5
+  caption: "Photo credit: [**'Rachel Claire' on Pexels**](https://www.pexels.com/photo/elephant-grazing-alone-among-bushes-in-nature-4577799/)"
+---
+
+<iframe title='Embedded Media titled: The Living World: Ecosytems - AP Environmental Science' width="560"  height="315"  src="https://ncvps.yuja.com/V/Video?v=5181854&node=23587581&a=1836189395&preload=false" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen loading="lazy"></iframe>
+
+## References
+
+- “AP® Environmental Science: Course and Exam Description.” College Board, 2020.
+
+## Tags
+
+AP, Environmental, Science, Ecosystem, Community, Biotic, Abiotic, Autotrophs, Heterotrophs, Predator, Prey, Symbiosis, Parasitism, Commensalism, Mutualism, Competition, Species, Coexistence, Resource Partitioning
\ No newline at end of file
diff --git a/_pages/AP Environmental Science/apes-home.md b/_pages/AP Environmental Science/apes-home.md
new file mode 100644
index 0000000..c4aa298
--- /dev/null
+++ b/_pages/AP Environmental Science/apes-home.md	
@@ -0,0 +1,16 @@
+---
+title: "AP Environmental Science"
+permalink: /resources/apes/
+author_profile: false
+header:
+  overlay_image: /assets/images/apes_header.jpg
+  overlay_filter: 0.5
+  caption: "Photo credit: [**'Rachel Claire' on Pexels**](https://www.pexels.com/photo/elephant-grazing-alone-among-bushes-in-nature-4577799/)"
+toc: true
+toc_label: " Table of Contents"
+toc_icon: "file-alt"
+---
+
+## Unit 1: The Living World: Ecosystems
+
+[1.1 Introduction to Ecosystems](introduction-to-ecosystems)
\ No newline at end of file
diff --git a/_pages/resources.md b/_pages/resources.md
index 5a5e2bd..099e95c 100644
--- a/_pages/resources.md
+++ b/_pages/resources.md
@@ -13,4 +13,7 @@ toc_icon: "file-alt"
 ---
 
 ## Sciences
-<a href="ap-physics-1" class="btn btn--inverse btn--x-large">AP Physics I</a>
\ No newline at end of file
+
+<a href="ap-physics-1" class="btn btn--inverse btn--x-large">AP Physics I</a>
+
+<a href="apes" class="btn btn--inverse btn--x-large">AP Environmental Science</a>
diff --git a/assets/images/apes_header.jpg b/assets/images/apes_header.jpg
new file mode 100644
index 0000000..590d1da
Binary files /dev/null and b/assets/images/apes_header.jpg differ
diff --git a/assets/images/isabel_u.jpg b/assets/images/isabel_u.jpg
new file mode 100644
index 0000000..15f9392
Binary files /dev/null and b/assets/images/isabel_u.jpg differ
diff --git a/assets/images/profile_placeholder.png b/assets/images/profile_placeholder.png
new file mode 100644
index 0000000..c79d9a2
Binary files /dev/null and b/assets/images/profile_placeholder.png differ