Just write the answer. Is it co-evolution, convergent evolution, or divergent evolution? A. The tortoises on the Galapagos islands share a common ancestor, but over time they have become adapted for obtaining food in different habitats on different islands by having different neck lengths. B. Whales, sharks, and penguins all have the same bodies and fins/flipper for moving in water even though they belong in different animal groups (mammals, fish, and birds). C. Hummingbirds have a beak just the right length to reach the nectar in a cardinal flower and as they feed their foreheads bump into the pollen structure. Cardinal flowers are red which hummingbirds can see, but bees can’t, and their pollen structure is at just the right height for the hummingbird to pick up pollen as it feeds.
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Bellwork: Get out your notes! Just write the answer. Is it co-evolution, convergent evolution, or divergent evolution? A. The tortoises on the Galapagos.
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Bellwork: Get out your notes! Just write the answer. Is it co-evolution, convergent
evolution, or divergent evolution?A. The tortoises on the Galapagos islands share a common
ancestor, but over time they have become adapted for obtaining food in different habitats on different islands by having different neck lengths.
B. Whales, sharks, and penguins all have the same bodies and fins/flipper for moving in water even though they belong in different animal groups (mammals, fish, and birds).
C. Hummingbirds have a beak just the right length to reach the nectar in a cardinal flower and as they feed their foreheads bump into the pollen structure. Cardinal flowers are red which hummingbirds can see, but bees can’t, and their pollen structure is at just the right height for the hummingbird to pick up pollen as it feeds.
Is it Natural Selection, Gene Flow, Mutation, Non-Random Mating, or Small Population
1. Amish people are required by their religion to only marry and have children with other Amish people.
2. The DNA sequence in a bird is changed from ATT CCG TTG to TTA CCG TTG which changes the beak shape from long and thin to short and fat.
3. Peppered moths are eaten by birds. The moth color varies from light to dark. Light colored moths can blend in with a nearby species of tree. In the 1800s factories released large amounts of soot, which changed the tree color, so the birds were able to more easily find the lighter moths instead of the darker moths.
4. Northern elephant seals were hunted almost to extinction by people in the 1890s. The remaining population has reduced genetic variation.
5. A lioness joins a new pride and has cubs with the male lion.
6. A small group of birds flies from the mainland to an island and starts a new colony. (The birds never return to the mainland.)
QUIZ TIME•You may have your notes out for the first 2 minutes. Put everything else away.
CO: I will define taxonomy, recognize the importance of a taxonomic system, and
categorize organisms into domains.
LO: I will write notes. I will sort organisms with a partner. I will collect bacteria with a