TN High School Biology by

Starting from Scratch

gtotsch — 2024-06-29 00:23:20 UTC

Every living thing that we know of lives on the planet earth. At a very specific place in the universe. The recipe for life is very delicate. To understand this, we'll start from scratch with a brand new planet!

First Organisms

gtotsch — 2024-06-29 00:29:31 UTC

How and why does life happen? A fictional exploration of what could be based on the basic principles of biology.

Chemistry and Plastic Trees

gtotsch — 2024-06-29 00:33:26 UTC

What role does chemistry have in the growth and development of biological systems? Life finds a way, but the basic building blocks must inform its strategies.

Natural Selection makes mistakes too

gtotsch — 2024-06-29 00:38:23 UTC

Remember that mutation is random and not always an optimal design. However, sometimes even seemingly weak species manage to beat the odds.

Why does the past matter?

gtotsch — 2024-06-29 00:40:12 UTC

Natural Selection never stops, it just moves so slowly we often don't see it. What might happen when we fast forward into the future of our very own Earth?

Chorophyll: It's Got What Plants Need

gtotsch — 2024-06-29 00:49:14 UTC

Read this article for a good introduction on how plants use photosynthesis and respiration to meet their energy needs.

ATP is what YOU need!

gtotsch — 2024-06-29 00:53:56 UTC

Contrary to plants, us heterotrophs derive our energy from the food we eat. However, we must first break it down into microscopic pieces for our cells to eat. Follow the Acid Cycle of Krebs to see how.

To Breathe or not to Breathe

gtotsch — 2024-06-29 00:56:31 UTC

We can't live without oxygen, or can we?

Building Blocks of Life

gtotsch — 2024-06-29 01:00:04 UTC

Read this article and explain in your own words what DNA is, where it comes from and why it works the way it does.

gtotsch — 2024-06-29 01:06:02 UTC

gtotsch — 2024-06-29 01:09:04 UTC

It's cycles all the way down!

gtotsch — 2024-06-29 01:11:12 UTC

gtotsch — 2024-06-29 01:12:53 UTC