Forest logging removes trees, leaving behind only smaller bushes. Some rats in a depleted forest have an allele that makes them smaller than normal rats. It is easier
for the small rats to hide from predators in the bushes.
a) Give two reasons that the rat population is norat Hardy Weinberg equilibrium
b) Which type of rat is selected for in this ecosystem? c) how will the allele frequency change in the rat population d) is this an example of natural selection? Explain. e) has genetic diversity helped or hurt the survival of the rat population? Explain

What is the difference between the conducting zone and the respiratory zone of the respiratory system? the conducting zone is a series of cavities and tubes that move air to the respiratory zone where gases exchange with the bloodstream. the conducting zone exchanges gases between the lungs and the alveoli and the respiratory zone is a series of cavities and tubes that move air to the conducting zone. the conducting zone moves oxygen into the cells and the respiratory zone takes carbon dioxide away from the cells. the conducting zone moves oxygen into the bloodstream and the respiratory zone takes carbon dioxide away from the bloodstream.

Radiometric dating is used to tell the absolute age of materials by studying the decay rate of radioactive isotopes. the decay rates of isotopes are constant and are expressed as .

In the respiration-photosynthesis cycle shown above, what are the products of cellular respiration that belong in box 2?