Read these sentences from the text. "Perhaps not surprisingly, skin-our interface with the world-supports a large
number of the body's most diverse populations of bacteria. There are at least 1,000
different species of skin bacteria, along with dozens of fungi and other mícrobes.
Most aren't harmful, and many protect us."
Based on this information, what does the word "diverse” probably mean?
A
having a lot of variety
B
being harmful to others
being helpful to others
D
moving from one place to another

Which of the following is not a food produced in rainforests? a) coffee b) cocoa c) avocados d) wheat

How is the carbon cycle related to global warming ?

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.