If predators successfully catch and consume their prey to the point that the prey population can be a limiting factor

What would be an example of hypothesis for goldfish respiration lab

Plz will mark! the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

If bacteria are much too small to see, what is one reason why can we see colonies in the petri dishes that have plenty of food to eat after only a few days?