1. According to the video on Energy Flow Through Ecosystems, energy flows from the sun to the __________, then to the primary __________, then to the secondary ___________, then to the ___________ consumer, and then to the apex ____________, and finally to the ___________.
2. Green plants are the only __________ that make their own food using sunlight, water, carbon dioxide through a process called _______________.
3. When the plant makes its food the carbon dioxide is changed from gas to _________ and the gas called __________is produced.
The second video which explains the food chains and food webs will help with the following exercises.
4. A food _______ shows feeding relationships between animals that are in more than one food chain.
Below are some feeding relationships between animals in a woodland:
· Worms, voles, and mice eat vegetation.
· Badgers eat worms, voles and mice.
· Shrews and badgers eat worms.
· Barn owls eat shrews, voles and mice.
5. The animals in a food web that are in the food chains above would be:____________________________________________________.
6. In a trophic __________ of a food web, the plants are in level ______ and the highest level is the ______.
7. Organisms that feed on plants and animals are called __________.