Answer:
The right answer should be d
Answer:
Stars form inside relatively dense concentrations of interstellar gas and dust known as molecular clouds.
Explanation:
These regions are extremely cold (temperature about 10 to 20K, just above absolute zero). At these temperatures, gases become molecular meaning that atoms bind together.
Answer:
A. the wings of bees and birds
Explanation:
A homologous trait is a trait that is similar morphologically and genetically to one another due to their shared ancestry. This means that the traits are formed from the same ancestors, hence, they are homologous or similar.
According to this question, the wings of bees and birds are homologous because they share the same ancestry.