The body uses specific methods to address pathogens that are causing illness. What are some of the body's nonspecific defenses against invading pathogens?

a.

antibiotics

c.

antibodies

b.

mucus, sweat, and tears

d.

killer T cells

Thick fur on deer is not an example of coevolution. Why?

What is the main difference between the gas water vapor and the liquid water? A The molecules of water vapor are much smaller than those of liquid water. B Liquid water is made out of different molecules than water vapor is.

What is the mineral content of Dunite?

What differentiates galaxy groups from clusters? A. Clusters are bigger than groups. B. Clusters are more massive than groups. C. Clusters contain a hot intracluster medium, whereas groups do not. D.

Which of the following observations tells the biologist that the organism is eukaryotic? Choose all that apply. a It has membrane-bound organelles. b It has a cell membrane.

Which level of biological organization is the simplest level at which a structure can support life functions

Which scientist conducted the first psychological experiment?

Why is the human heart so complicated?

Why is the Carbon Cycle so Important to our Planet?

Explain how your model demonstrated energy transformation from thermal energy to mechanical energy during a volcanic eruption. (I mixed warm water, vinegar, and baking soda)