An ecology student noticed that big moose lake has a higher nitrogen level than brant lake, but has lower algae growth. this data surprised her, because algae often flourish in water with high nitrogen level. develop a hypothesis to explain the surprisingly low algae growth in big moose lake.

The population of bacteria in a petri dish doubles every 40 seconds. the population of the bacteria is initially 400 organisms. what unit is most appropriate for the time at which the number of bacteria is 300? hour bacteria per hour second bacteria per second

Which of these statements best describes the st. lawrence seaway? the st. lawrence seaway connects the st. lawrence river with the arctic ocean. the st. lawrence seaway provides an important trading route between the u.s. and mexico. the st. lawrence seaway provides an important trading route for the u.s, but has little value for canada. the st. lawrence seaway connects the great lakes, the st. lawrence river, and the atlantic ocean.

What must be true for natural selection to heppen