7 is what on a pH scale

Describe the ph scale

Two roommates with little botanical knowledge thought they could make a quick profit by growing ferns for the commercial florist market. They thought it would be very easy.

What are the four main types of clouds? Provide a brief description of each type

Is a staircase is an example of an inclined plane true or false

Biomedical research into human diseases and disorders relies extensively on non-human animal models. Transference of research findings to the treatment of human conditions is in large measure dependent on:

In human body temperature is kept fairly constant by automatic responses controlled by

Which blood component makes up 41% of the blood's volume?

Which is the process used by the cell to rid itself of unwanted, large substances?

Which characteristics accurately describe earthworms? Check all that apply. segmented body containing setae open circulatory system gas exchange through gills complex nervous system sexual reproduction

One hypothesis for why obesity rates are high is the energy-thrifty gene hypothesis. According to this hypothesis, how did the environment our ancestors lived in differ from our present-day environmental in term s of food?