At what ph would the above structure be the predominant ionization state "histidine"

Hurry where is the majority of earth's water found? o glaciers o oceans ground o rivers and lakes

How can an organ, such as the lungs, work for multiple body systems?

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.