They need an independent variable, in this case it should have been the fish food. Everything should be identical except the fish food, from what I read , it doesn't say anything about what type of food they used, or the dosage.
The invasive species are the species who are present in a non native ecosystem. The invasion of These species disturbs the environment of particular system by increasing the competition or destroying the vital component of the ecosystem.
The invasive species like brown tree snake exhaust the food of the other animals present in the ecosystem, as they are capable eating almost every type of food. Due to the presence of the brown tree snake, the competition for food increasing, which result in disappearance of many native species. Other invasive species can feed on the native species and cause decrease in their number, so, the invasive species disturb the ecological balance in the ecosystem.
The bats wings and the bird wings
Answer:
Innate immunity
Explanation:
Innate immunity is also referred to as inherited or natural immunity. It is the type of immunity that one is born with. It is passed on from mother to offspring. This form of immunity is non-specific as it offers protection from many types of antigens.
