What do we call animals that primarily eat the dead remains of other animals?

The Earth’s atmosphere warmed by about 1ºC over the last 100 years. What rate of change is considered to be normal (natural) warming?

How would you interpret results of DNA restriction analysis by gel electrophoresis if there was a difference in one band? 

The fossilized waste of an animal is called a _____.

Which immunoglobulin is more efficient in agglutination?

A laboratory professional is removing their gloves after an hour of working at their station to take a break. There is no visible soiling on their gloves and they have not spilled any body fluids during the past hour. Which is an acceptable hand-washing procedure?

An immunoassay is performed in the following way: Antigen is bound to a solid support. Patient serum is added, and patient antibodies bind to the antigen. The well is washed, and enzyme-labeled anti-immunoglobulin antibodies are added. The well is washed, and enzyme substrate is added. Enzyme activity is determined. Which immunoassay is described?

Predominant cell types involved in the humoral immune response are:

The biggest safety hazard in the laboratory is which of the following? 

This question has two pictures for comparison: one without highlights (left) and one with highlights (right). Identify specifically the highlighted groove.