Snake Frog
Cricket
Plants
The figure shows a food pyramid in a particular ecosystem. Which level of this food pyramid contains consumers with the largest amount of biomass?
Green plants
Snakes
Crickets
Frogs

What kind of action is a cause of air pollution

Need with these questions . need the answers in a rush for these questions are the answers i put down are correct or not? ?

Ascientist is investigating the effects of salinity on fish development. he places fertilized fish eggs in an aquarium that contains low salinity and observes their development. what factor would improve experimental design the most? place the fish eggs in the open ocean because that is the natural habitat include another aquarium that has normal salinity to compare to the low salinity aquarium include an aquarium that replaces salt with sugar to confirm that the effects are specific to salt grow algae with the fish eggs in order to provide adequate nutrients to the developing embryos