Fill in the blanks:1. Comparision of DNA sequences among single-celled organisms suggests that eukaryotes are more closely related to archaea than bacteria. The type of evidence is . 2. The oldest known and most primitive bird is the 150-million-year old Archaeopteryx. Its remains display feathered wings, but its skeleton is otherwise similar to the two-legged dinosaurs that lived at that time. The type of evidence is . 3. The skulls of humans and other primates have the same basic layout of bones, even though the heads are drastically different sizes and shapes. The type of evidence is . 4. Most of the animals found on the island of Madagascar are found nowhere else, indicating they evolved from ancestral populations after Madagascar was isolated from other continents. The type of evidence is . 5. Remains of a 365 million year old organism named Ichthyostega include features that suggest it spent time both in water and on land, indicating that it was a transitional species between fish and land-dwelling amphibians. The type of evidence is . 6. The amino acid sequence of human hemoglobin is more similar to the sequence of hemoglobin from dogs than it is to the sequence from fish. The type of evidence is . 7. Fossils of some species of reptile are found only in West Africa and Brazil, even though these locations are currently separated by thousands of miles of Atlantic ocean. The type of evidence is .