The acacia is considered to be in an ecological niche. This is because it plays a certain role and position for species that are around it, and in this example the ants are the ones who interact with this tree. The tree then provides it with protection for it to survive its environment.
Answer: reproductive, endocrine, and nervous systems
- Hormones provide feedback to the brain to affect neural processing. Reproductive hormones affect the development of the nervous system. The hypothalamus controls the pituitary gland and other endocrine glands.
Answer:
heart blood vessels and blood
A forest ecosystem can support a limited number of bears. This is because available energy is lost from one trophic level to the next. (flies, trout, then bears)