In what way is dna like a book? a. dna has information organized with a kind of index b. dna has stored information that can be copied and passed on c. dna has information wrapped in an identifying cover d. dna has information that is periodically updated

I think that the answer is A: DNA has information organised with a kind of index. Because a book contains letters- just like the DNA. It's how the letters are arranged into words and that's is what gives the book a meaning/significance. The same is for DNA. It is how the bases are arranged that makes them significant.

An autotrophic protist - they can perform photosynthesis and mainly consist of unicellular algae. they can be divided into number of systematic group according to the shape of their cell and the type of photosynthetic pigments they use.