Human intervention has caused a decrease in many populations. what can this change lead to over time?
background extinction
increased biodiversity
mass extinction
increased genetic diversity

According to the law of conservation of energy, energy can neither be created nor destroyed. if this is true, why is there less energy in the top of the energy pyramid than there is in the bottom of the energy pyramid?

There are specialized producers that live in warm water vents deep in the ocean. these producers do not per-form from photosynthesis, but instead perform a similar process with iron and other chemicals. why do you think these producers use this process instead of photosynthesis?

Guard cells control which event? the growth of plants capture of solar energy gas exchange in leaves water absorption in roots