In one type cross of black × black, the results were as follows:

9/16 black
4/16 yellow
3/16 brown

the genotype aabb must result in which of the following? why is it
a) black
b) brown
c) yellow
d) a lethal result

Resperation is a way to release carbon back into the atmosphere

What might explain the real-world results, show in the graph to the right, for one class of twenty students? check all that apply.

Chronic obstructive pulmonary disease (copd) makes it difficult for the respiratory system to deliver oxygen to the lungs. the scientist wants to use a computer simulation to model how copd affects heart rate and respiratory rate during exercise. she will compare the results of the simulation to the results she gathered in her previous study. which of the following would be an appropriate dependent variable for the new study?