Any condition in an experiment that can be changed is a control variable!!
You control it!!
Answer:
Phototrophs
Explanation: Some organisms obtain their energy from the sun by the process of photosynthesis. These organisms are known as phototrophs because they can make their own organic molecules using sunlight as a source of energy.
Hypotonic.
In hypotonic environment, the water moving into the Paramecium cell by osmosis. Paramecium cells regulate water through special organelles which are known as contractile vacuoles. Paramecium is a freshwater organism, which means a hypotonic environment is its typical ambience.
Answer:
RNA
Before protein synthesis, a messenger carries the genetic code from the DNA in the nucleus into the cytoplasm. The messenger is called RNA.
Explanation:
I dont have biology but i learned about this.
