Which component of blood protects us from invading foreign material

Stephen is a student who wants to test his knowledge of medical terminology. which option could he use?

What type of plant is good for a bioassay and where can i buy it? i only have a month.

The embryos of a bird, a reptile, and a mammal are similar in appearance. how does comparing the physical appearance of embryos of different species support the theory of evolution? a. it shows that these organisms share a common ancestor. b. it provides evidence that these organisms eat the same foods.c. it shows that these organisms share the same habitat.d. it provides evidence that these organisms suffered a genetic mutation.