Which of the following is a possible consequence of ozone layer depletion on living organisms?
a increased exposure to ground-level ozone
b. decreased levels of ultraviolet radiation in the troposphere
increased levels of ultraviolet radiation absorption in the stratosphere
none of the above

Which statements best describe the differences or similarities between a comparative investigation and an experimental investigation? check all that apply. experimental investigations are best for showing cause-and-effect relationships, while comparative investigations do not necessarily show this type of relationship. comparative investigations are often impractical and unrealistic, while experimental investigations are the most practical and realistic kinds of investigations. comparative investigations allow for the use of a wide range of variables but do not have a control group, while experimental investigations involve variables that can be controlled. both experimental investigations and comparative investigations are designed to answer scientific questions. both experimental investigations and comparative investigations focus on making observations rather than collecting new data.

Which is a kingdom? protistachordataprokarya mammalia

What determines whether a particular cell is able to respond to a hormone?