Which of the following descriptions is incorrect about animal experiments?()
选项：

A:The results of animal experiments can be directly applied to human body
B:To some extent, we can understand the efficacy and influence of drugs or other factors on a certain disease
C:It can be taken continuously in stages to understand the development process of the disease
D:Animal models of certain diseases can be reproduced in suitable animals
E:We can use animals to study the etiology and pathogenesis of diseases