Answer:
parasitisme
Explanation:
the host will get negative effects
A scientific theory is an explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment.
A lot of toxins in a coral reef could influence natural selection so it would become like survival of the fittest. Then the fish would develop certain traits to better protect themselves (less prey means predators would takes bigger measures to get food). This would also cause a decrease genetic variation because there wouldn't be as much fish left. Since the coral reef went from unique to dull from toxins.
Drug users body is effected and body growth will be weak
Therefore, drug users growth is unstable
Both are exchange of gases in plants ! some differences are ....
1) respiration takes place all the time while photosynthesis happens only in the presence
of sunlight !
2) in respiration O2 is used but in photosynthesis CO2 is used !
3) starch breaks to give energy in respiration but in photosynthesis starch is formed !
