What is represented in the model below? A. Two chromatids
B. Four chromatids
C. Four chromosomes
D. Four chromosomes pair

Development of new communities in disturbed environments, such as a burned or a clear cut forest, is called

Time ! for a smell to begin the process of registering in your brain, first you must a) inhale odor molecules into the nasal cavity b)transduce scent chemicals c)have a scent to inhale d)all answers can work

The distant ancestors of tigers may have had bodies without stripes. use the theory of natural selection to explain how tigers may have evolved to have stripes.