You have an unknown piece of matter in front of you that you believe to be a piece of bark from a tree. First, how would you determine if the matter was organic or not? Second, what are two kinds of tests you could perform to indicate the material is plant matter rather than an animal?

What is the primary function of the nervous system?

Which label identifies the part of the atp molecule that changes when energy is released in the cells of all living things

The table presents the average day and night temperatures in five cities. it also reveals whether a city receives substantial rainfall (wet climate) or little rainfall (dry climate). which city’s rocks are likeliest to experience frost wedging, and why? a) city a because the consistently subzero temperature would prevent water from melting b) city b because it is a wet region and the temperature fluctuates around the freezing point c) city c because it receives plenty of rain fall and the weather is moderately cool d) city d because the hot and dry weather would cause rocks to absorb water