Why can carbon form very large molecule?
a. its its +4 valence forms ionic bonds.
b. it has a natural ionic charge of +4.
c. it can bond with other carbon atoms that are bonded to other molecules.

Y’all i need answers plss people are saying me and my brother look alike although we’re two different ages. one year apart i’m a girl, btw i’m thinking we could be fraternal twins idk my parents and my friends think we look alike

The earth consists of a variety of different organisms. despite their diversity, however, some similarities on the structural and metabolic levels may be seen. these similarities can be attributed to a. similarities among organisms in their proteins and nucleic acids. b. the ability of organisms to readily adapt to sudden environmental changes. c. similarities in organisms' habitats and niches. d. the ability of all organisms to interbreed and produce new species.

What substance acts to prevent sudden ph changes in bodily fluids?