mitochondria and the Golgi apparatus i hope that's helps
Gulls are most likely to be infected by this parasite :)
For evolution to occur:
There must be genetic variation in a population. This provides variation on which natural selection can act. Then natural selection can act by selecting those species which are better adapted to the environmental conditions. Over time those animals that are best suited to the environment only will survive and reproduce. Those organisms successful genes will be preserved and eventually the gene frequency in the population will change, changing the overall characteristics of a population. This is how evolution occurs.
Answer:
They absorb the food molecules that result from the external digestion.
Explanation:
It regulates on/off like a light switch