Snails will produce only carbon dioxide, while the Elodea will produce carbon dioxide and oxygen gas. Snails and Elodea will produce more carbon dioxide, causing the water to turn yellow. Adding the Elodea
creates a symbiotic environment in which the snails can obtain oxygen from the Elodea
.
Do snails need Elodea?
Elodea will
provide the necessary oxygen for your snails to carry out cellular respiration
.
What was the importance of a control in your experiment snails and Elodea?
BTB- In the test tubes which contained both snails and Elodea, the water… and changed in oxygen (NR). Identify the dependent variable (what you, the scientist, will measure) in this experiment:
The control allowed me to have a point of reference in which no change should have occurred
.
Do snails eat Elodea?
Rooted plants snails prefer include anacharis (Elodea Canadensis) and curled pondweed (Potomogeton crispus), which compete with algae for nutrients in a koi pond or water garden. … These are strictly warm-weather pond dwellers. Beyond algae, they consume
leafy vegetables, cucumbers, carrots, green beans and celery
.
What gas did the snails release?
Which gas did the snails release? What observation supports this inference? The snails released both
oxygen and carbon dioxide
. This was indicated by the solution changing to yellow.
Do producers give off or take in carbon dioxide?
Producers convert water
, carbon dioxide, minerals, and sunlight into the organic molecules that are the foundation of all life on Earth.
Does an elodea plant give off carbon dioxide?
They produce carbon dioxide during cellular respiration
. In this experiment, the student will place aquatic plants under different colors of light in a solution of bromothymol blue. … Carbon dioxide bubbled into water forms carbonic acid.
What is the relationship between elodea and a snail?
Symbiosis
. The relationship between snails and elodea is symbiotic in that the snail eats algae and produces carbon dioxide. The elodea takes in the carbon dioxide and, through photosynthesis, creates oxygen, which the snail and every living thing in the tank uses to breathe.
What was the importance of a control in your experiment?
Controls allow the experimenter to minimize the effects of factors other than the one being tested
. It's how we know an experiment is testing the thing it claims to be testing. This goes beyond science — controls are necessary for any sort of experimental testing, no matter the subject area.
What does elodea produce?
Elodea plants produce
oxygen bubbles
. The elodea is an aquatic perennial plant. When in bloom, elodea produces white, three-petaled flowers that float on the surface of the water. Elodea produces bubbles when it breathes.
What does Elodea need to survive?
- Water. Elodea will only survive when grown below the water's surface. …
- Soil. Elodea grows in most soils but prefers a sandy sediment that's rich in minerals and has a neutral pH. …
- Sun. Like other plants, elodea gets its energy from photosynthesis. …
- Space to Grow.
Do fish eat snails?
Lots of fish eat snails, from
loaches
, to some catfish, to some cichlids. Convicts are particularly good predators of Physa, as are Koi and large goldfish. Puffers are the most adapted to eat snails but cannot be mixed with other fish. Paradise fish are great too, but can be pugnacious towards small community fish.
How do you care for Elodea?
Keep the habitat at temperatures ranging from 50 to 77° F for Egeria densa, and 45-65°F for Elodea canadensis. Your container should be
large enough to submerge the entirety of the Elodea in treated water
. Elodea can grow if it is free floating, but it does grow more vigorously if it is rooted in a substrate.
Does the color of the water in the tube change?
Gizmo Warm-up
In the Plants and Snails GizmoTM, each of the test tubes contains water and a small amount of bromthymol blue (BTB). BTB is a chemical indicator.
An indicator changes color when the chemicals in the water change
.
Which process do snails use to produce energy?
This process is called
photosynthesis
.
Why do trees gives us oxygen?
Trees release oxygen
when they use energy from sunlight to make glucose from carbon dioxide and water
. Like all plants, trees also use oxygen when they split glucose back down to release energy to power their metabolisms.
