Food Webs
What is the original source of energy in almost every food web?
The Sun
In which direction does energy move in a food web?
The sun to the producers to consumers to the decomposers
What is an organism called that breaks down dead plants and animals
Decomposer
What are fossils?
The preserved remains or traces of organisms that lived long ago
Which organism should always be at the beginning of a food chain?
Producer
Do plants gain energy from eating other organisms? Explain
No, they make their own food
Which type of consumer eats only plants
Herbivore
What can fossils tell us about earth long ago?.
What plants animals and environments were like
Why are producers important in a food web?
They provide food and energy for other organisms
Why can’t energy flow directly from the sun to a lion?
Lions cannot make their own food and must eat other organisms
Which consumer eats plants and animals
Omnivore
Name, one common fossil found in Texas
Ammonite, dinosaur footprint, shark tooth, petrified, wood, clam/shell, fossils, etc.
If all producers disappeared, what would happen to the food web?
The food web would collapse, because consumers would lose their food source
Explain why less energy is available at each level of a food web
Organisms use energy to live, so less energy is passed on
Why are decomposers important to ecosystems?
They recycle nutrients/matter back into the soil for producers
A fossil of a fish is found on dryland. What does this tell scientist?
The area was once covered by water
Hey student places two plants and identical pots, both receive the same amount of water but one plant is kept in complete darkness what will most likely happen?
The plant in the sunlight will make food because it has the energy needed for photosynthesis
A food web includes grass, rabbits, snakes, hocks, and mushrooms if all the grass died, which change would most likely happen first
Rabbits would have less food to eat
Explain the roles of producers consumers and decomposers in cycling matter
Producers make food, consumers eat organisms, decomposers recycle matter back into the environment
To rock layers contain different fossils one layer has fish, fossils, and another has parcels of land plants and dinosaurs what most likely happened
The environment changed over time