Geographical Evolution
Biogeography is the study of what?
What is past and present geographical distribution of species
How can DNA be used to compare organisms? (100) (A: Scientists compare DNA sequences to see how similar organisms are)
What is scientists compare DNA sequences to see how similar organisms are
This field of science examines the similarities and differences in embryonic development across different species.
What is comparative embryology
Name 2 examples of a vestigial structure in humans.
What is an appendix and tailbone
How do fossils show that life has changed overtime?
What is fossils show preserved remains of organisms from different time periods, revealing changes in species over time
How does environment affect evolution?
What is organisms adapt to survive in their specific environment
What does it mean if two species have similar DNA?
What is they are closely related and share a recent common ancestor
How are embryos of different species similar?
What is many species look alike in early development stages
What is a homologous structure?
What is an organ or bone that appears in different animals, underlying anatomical commonalities demonstrating the descent from a common ancestor
What is a fossil record?
What is the fossils and their locations in the sedimentary layers of Earth’s crust, which provide information about thing that lived in the distant past
Why do animals in similar environments look alike?
What is they develop similar adaptations to survive
Why are proteins compared in evolution?
What is similar proteins suggest similar genetic information
Why do scientists compare embryos?
What is to find similarities that suggest common ancestry
What are analogous structures?
What is body parts that have the same function but different structures, giving proof to no common ancestry
Why are deeper fossils older than ones near the surface?
What is because sediment layers build up over time, so deeper layers formed earlier
Why are island species different from mainland species?
What is they evolve separately due to separation
How does DNA support common ancestry?
What is all living things shared genetic code, they are related
What does similar embryo development suggest?
What is that species are related and share a common ancestor
Why are vestigial structures evidence of evolution?
What is they show that organisms have changed and adapted from their ancestors
What can scientists learn from fossil layers?
What is they can determine the age of fossils and how species changed over time
A fossil of an ostrich is found both on the western coast of south America and the eastern coast of Africa. What study can be used to explain this?
What is biogeography
What does a big difference in DNA mean?
What is the species are less closely related
How does embryology support evolution?
What is it shows that organisms develop in similar ways, linking them evolutionary
Explain the differences between a homologous, analogous, and vestigial structure.
What is: Homologous: appears in different animals, has similar structures, and a common ancestor. Analogous: appears in different animals, has the same appearance/structure/function but has no common ancestor. Vestigial: A structure once needed before by ancestors but has no more use today
How do fossils help us understand extinct species?
What is they provide evidence of organisms that no longer exist and show what they looked like