Define/Describe each (8 pts)
Look in your textbook glossary or under origin on
dictionary.com (what is the Greek or Latin meaning).
1. Foramen _an opening or passageway_
2. Fossa _a depression, groove, or furrow_
3. Petrous _portion of tempora
Energy Pyramid Notes
Energy pyramid a model that shows the amount of energy that moves from one feeding level to
another in a food web
Food Chains usually have at least three links, but rarely more than five. This is because the
organism that gets eaten o
STUDY GUIDE ANSWERS
Energy Flow in Ecosystems
All living things need energy to grow and to carry out their activities.
They get this energy from their food or directly from the Sun.
This energy is passed from one organism to another in an
These plant experiments on creating oxygen are fun and easy to do. The air that we breathe is 21%
oxygen. After we breathe in oxygen we exhale carbon dioxide. Carbon dioxide is needed by plants for
them to live. In these
Cycling of Matter:
The student is expected to demonstrate and explain the cycling of matter within living systems
such as in the decay of biomass in a compost bin.
Key Concept 1: Soil contains decomposers, such as bacteria
Guided Learning: Handling Chemicals
and Biological Materials
After completing this activity, you will be able to
Label containers containing chemicals correctly.
Use the proper technique to smell chemicals.
Phototropism is the growth or movement of a plant in the direction of its light source.
Geotropism is a turning or growth movement by a plant or fungus in response to gravity.
Hydrotropism is the turning or growth move
Energy in an Ecosystem
Diagram the flow of energy through living systems, including food chains,
food webs, and energy pyramids.
What are energy roles in an ecosystem?
A system is a group of things that are related to one another in some way and