Tag Archives: organisms


Organizing Life

Now that we’ve spent some time getting to know our key vocabulary in the biology sequence, let’s start to delve a little deeper into the links and relationships among those words.

The Cell Theory is one of the foundational ideas behind all of biology, and it is something you must be familiar with before starting any future classes in bio. There are 3 main postulates to the Cell Theory, which I’ve listed below.

  1. All living things are made of cells.
  2. All cells come from pre-existing cells.
  3. The cell is the smallest unit of life.

Even though all living things are made of cells, not all cells are alike. Living organisms are classified into 5 kingdoms of life based on differences in their physiology and cell function. I think the link above and the image below nicely summarizes the way we classify living organisms.

In this unit we’ll look at one of the key distinctions among Earth organisms: the differences between plant and animal cells. The notes packet and diagrams you received in class contain the “official class notes” on this topic, so don’t lose them! You might also find the following items somewhat useful:

Biology – key vocabulary

proteinsimage source: filebox.vt.edu

Welcome to the biology unit, kids! I’ve added a couple of helpful documents to this post, which you will want to refer to as we move through our unit on the organization of life on Earth.

The first document, G9 Biology Vocabulary, is an outline of the major concepts in this unit. It’s basically a big list of important vocabulary words. I’ve intentionally left out the definitions, examples, and explanations, because that’s what you need to add – that’s how you learn! You should download this document and add to it as we cover different topics during the unit.

The second document, G9 Biology vocabulary matchup, is the collection of cards we used in class. You’ll find vocabulary terms and definitions organized into columns and sorted by topic. This will be a nice reference in case you miss something during a class.