26. Which of the following statements are accurate?
A. Natural killer cells function in detection and destruction of bacterial cells.
B. Neutrophils, Lymphocytes, Monocytes, Eosinophils, and Basophils are all white blood cells that are part of the immune system.
C. T cells and B cells are both considered part of the adaptive immune system.
D. none of the answers are correct
E. Macrophages are innate immune cells that are capable of pathogen phagocytosis.
F. B cells will be important in the production of antibodies. Some of their clones will be called 'plasma cells' that produce antibodies.

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.

The double bond between a carbon atom and two oxygen atoms (a molecule of carbon dioxide) has two characteristics. what are they? a.an ionic bond is formed between the oxygen and carbon atoms. b.four valence electrons are shared. c.two valence electrons are shared. d.valence electrons are shared between oxygen atoms.

Drag the labels to the correct location in the equation. not all labels will be used (1 kilometer = 1,000 meters, 1 hour = 60 minutes, 1 minute = 60 seconds) complete the steps necessary to convert 55 kilometers per hour to meters per second, min 60 1,000 15.28100 sec min 55 km 1 hour 5fhkem x 4 km] m x 1 hourin xoo1 min 1 km sec reset next