BIO TEST 1 Flashcards
Ecosystem
An ecosystem is a relatively self-contained community of interacting organisms and the environment they live in, and interact with.
Source of Energy in Ecosystem
The sun
Photosynthesis
When plants use sunlight, water, and carbon dioxide to make their own food, and also oxygen.
Energy conversion in photosynthesis
Light Energy —–> Chemical Energy
Transfer of energy
Something that involves the living things with different levels such as producers, primary consumers, secondary consumers, and tertiary consumers.
Biomass
The amount of materials in a plant or
any living organisms.
Food Chain
A simple way to show the feeding
interactions between the organisms in
a community.
Ecological Pyramid
A way to describe the number of living organisms in each trophic level.
Food Web
A network of interconnected food chains.
Cells
The smallest unit of life.
Types of cells
Prokaryotes and Eukaryotes.
Prokaryotes
Cell without nucleus and membrane-bound structures, such as bacteria.
Eukaryotes
Cell with nucleus and membrane-bound structures, such as Protoctist, Fungi, Plant, Animal.
Organelle
A component within a cell that carries out specific
tasks.
