All of the following are nonspecific defenses except for...
A: fever
B: skin
C: tears
D: antibodies

In this experiment, the was intentionally manipulated. it is the independent variable. the dependent variables that were measured were the

The fruit of a certain plant is sweet and fleshy. the seeds of this plant have a seed coat that is fairly tough. the seeds germinate better if they are exposed to acid, or scarification. what is the most likely type of dispersal for this seed? water animal wind

Diabetes is often suspected when glucose shows up in urine tests. use the model to explain how glucose could be present in urine. why do you think this symptom is especially concerning for young people?