B. The organisms can be helped or harmed. If it is helped then it is called mutualism, because both of the organisms mutually help each other (I.e clownfish and sea anemone). The symbiosis can be harmful to the host as well and this is called parasitism(i.e dogs and fleas). There is also a third term for symbiosis which is commensalism which benefits the non host but doesn’t effect the host (I.e barnacles on whales)
Yup pineapple come from tress we get then by planting their seeds
Because grasslands do not have many trees, only lots of grass and flat earth. Even if there were flying birds and tree animals, there'd be very few of these, with the fact that there are almost no trees at all in grasslands.
I hope this helps, please Brainliest me, and have a fantastic day! :D
By changing the controlled variable.
Answer:
Cellular respiration is a chemical reaction that releases energy from food. Animals, plants and fungi all carry out respiration. Respiration produces carbon dioxide. In respiration, oxygen is used to break apart food molecules.
Explanation:
