![Lakshmi Krishnan](/sites/default/files/styles/career_image/public/2021-03/Lakshmi%20Krishnan.jpg?itok=6lr3vAi2)
Lakshmi Krishnan
Vice President, Life Sciences
![Medical supplies and Canada flag](/sites/default/files/styles/resource_card_image_360x300_/public/2020-09/coronavirus-ncov-concept.jpg?itok=e9iA3s8u)
Creating a Vaccine for COVID-19 in Canada
STEM Explained
Learn how vaccines are developed, how they work and how some scientists in Canada are researching vaccines for COVID-19.
![Outdoor crime scene](/sites/default/files/styles/resource_card_image_360x300_/public/2020-09/crime-scene-outdoor.jpg?itok=hq_OyeI4)
You Be the Crime Scene Investigator
Lessons
Students will learn about crime scene investigation and its connections to cell biology and careers.
![Icon showing a syringe on a shield](/sites/default/files/styles/resource_card_image_360x300_/public/2020-07/medical-design-illustration-id500541197.jpg?itok=ysQG1dLa)
Herd Immunity: How Vaccines Protect the Most Vulnerable
Backgrounders
What is herd immunity and how does it protect some of the most vulnerable people in our communities?
![Infant receiving a vaccination](/sites/default/files/styles/resource_card_image_360x300_/public/2020-06/infant_immunization.jpg?itok=mEbcFghA)
Immunity and Vaccination
Backgrounders
Learn about the history of vaccines and how vaccines trigger an immune response that keep us from getting some dangerous diseases.
![Labo de Heather McFarlane's](/sites/default/files/styles/career_image/public/2020-06/Heather%20M%27s%20Lab.jpg?itok=i1PiN2C_)
Heather E. McFarlane
Career Profiles
Assistant Professor & Canada Research Chair in Plant Cell Biology
![Human kidney cross-section](/sites/default/files/styles/resource_card_image_360x300_/public/2020-04/human-kidney-cross-section.jpg?itok=3VpDHDAd)
Osmosis and Its Role in Human Biology and Health
STEM Explained
Learn how and where osmosis takes place in the digestive system and excretory system and the role of osmosis in kidney dialysis.
![Coniferous and deciduous trees covered in snow](/sites/default/files/styles/resource_card_image_360x300_/public/2020-03/coniferous_deciduous_snow.jpg?itok=FwvMVkpV)
How Do Trees Survive in Winter?
STEM Explained
What adaptations and processes do trees in northern climates have to survive winter?
![Tilia stem cross-section](/sites/default/files/styles/resource_card_image_360x300_/public/2020-01/Tilia-stem_plant_cells.jpg?itok=5uh7WQ1j)
Plant Cell Structures and Functions
Backgrounders
Learn about the many different structures that make up plant cells as well as what differentiates plant cells from animal cells.
![Leaf and the Sun](/sites/default/files/styles/resource_card_image_360x300_/public/2020-01/Plant_Functions.jpg?itok=60gbqGFi)
Plant Functions
Backgrounders
Learn about the important plant functions of photosynthesis, respiration and transpiration
![Jillian Croke | Pharmacienne et pharmacienne gestionnaire](/sites/default/files/styles/career_image/public/2020-07/jillian3.jpg?itok=0pzQHi86)
Jillian Croke
Pharmacist/Pharmacy Manager
![Screen capture from video "The Wacky History of Cell Theory”](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/screen_shot_cell_theory.png?itok=XaFJP-YW)
The Wacky History of Cell Theory
STEM Explained
It took several scientists building on each other’s discoveries to come up with Cell Theory - one of the cornerstones of biology.
![Water droplets on succulent leaves](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/Succulent_leaf.jpg?itok=55kCziIw)
How Do Plants Survive in the Desert?
STEM Explained
Plants need to exchange gases and water with their environment as part of photosynthesis. Some plant cells have evolved specifically for this purpose.
![Why do leaves change colour in the fall?](/sites/default/files/2019-08/wiki-autumnleaf.jpg)
Why do leaves change colour in the fall?
Hands-on Activities
How do the green leaves of summer change to vibrant colours in fall? Explore plant pigments in this chromatography activity.
![Bottle of Measles, Mumps, Rubella (MMR) vaccine](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/Measles_Mumps_Rubella_vaccine.jpg?itok=9iioBN0c)
Measles and Measles Prevention
STEM Explained
Learn about the measles virus, its impact and vaccination for prevention of the disease.