What distinguishes the savanna and grassland biomes? a. woody plants b. large predators c. seasonal precipitation d. herds of herbivores

Option A i.e Woody Plants is the right and correct answer.

The woody plants distinguishes the Savanna and grassland biomes. The Savanna biomes are characterized by woody plants and shrubs while on the other hand the grassland biomes has absence of woody plants and is mostly covered by large, rolling terrains of grasses, flowers and herbs.

dopamine..

"it was found that some people who were taking the drug l-dopa to raise their levels of dopamine were developing schizophrenic-like symptoms supporting research a strength of the dopamine hypothesis is that there are many studies which have shown support for the neurochemical explanation."

im sorry i dont know