The answer is an open system
Sunlight, water, carbon dioxide, and chlorophyll :)
Answer:
b. cladophora
Explanation:
The cladophora algae is a type of green algae that grows attached to rocks or wood that are underwater. It forms short, rigid green filaments that branch, it's smell is similar to mushrooms. The cladophora is introduced in aquariums via contaminated plants or equipment, therefore to prevent it's formation it is necessary to clean everything before intoruducing it to the aquearium. This algae is so resistant once installed that usually the tank has to be re-started.
Hemophilia is a genetic disorder that causes a protein required for normal blood clotting to be missing. The mode of inheritance for hemophilia is sex-linked.
Answer: a. sex-linked
Mutualism
Explanation: a relationship between two species of organisms in which both benefit from the association.