The male deer has evolved to have antlers that can grow to various lengths. the female does not have any antlers. using the deer as your example, describe how the mechanism of natural selection may have led to the evolution of males long antlers

When plants use sunlight to make food, the energy of sunlight is

Pulmonary arteries carry highly oxygenated blood. true or false?

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