answer is b
Explanation:
aa in the anaphase of cell division crossing over and random assortment of genes happen so the genes are getting mixed up together
Answer: Gaining or losing a chromosome will result in major genetic changes for that horse, as either it will be missing important DNA or will have too much DNA. Either can cause mutations to occur in the animal's genome. Chromosomal changes are caused by an error during either meiotic or mitotic cell division. An error could be that a cell has too much copies of a chromosome, or not enough, which causes the mutations mentioned above. Hope this helps some, I know it's not a super meaty answer.
Explanation:
Autotrophs are organisms which synthesis food (glucose) as product and release oxygen as by-product in the process of photosynthesis. In the process they use carbon dioxide, water in presence of sunlight. Examples of autotrophs are green plants, algae, blue green algae. The heterotrophs use glucose and oxygen produced by autotrophs. In turn, heterotrophs release carbon dioxide during cellular respiration which is used by autotrophs. In this way autotrophs and heterotrophs benefit each other.