Cytosine and guanine is correct.
Answer:
Es la tercera por qué cuando el material varía va cambiando de estado
Explanation:
Answer:
A bird's feathers are supposed to keep the bird warm and help them fly. A tree's bark is supposed to protect the inside of the tree.
Explanation:
If a tree has no bark, the inside of it is exposed. If a bird has no feathers, the bird is cold and cant fly.
Answer:
Horn silver
Explanation:
Because other two options are incorrect