Chapter 8C Flashcards
This is a lineup of organisms in order to show biological evolution?
Evolutionary family tree
They believe the closer organisms are on a tree, the more they are “related”
They believes one should avoid saying two groups of organisms are related?
Evolutionists
Creationists
Each time a limb on the tree branches, this is at the fork _______ ________. It is an organism that gave rise to two or more different types of organisms.
Common ancestor
True or False: Creationists believe organisms that are alike, share a common ancestor? All living things can be traced back to one common ancestor, a single cell millions of years ago.
False (evolutionists)
True or False: Wherever a tree branches, there must be a common ancestor? (see photo)
True (most of them are “missing links”
________ ________ They are “in between” organisms that show how one organism evolved into another. Creationists believe they are hypothetical organisms that should exist if evolution were true.
missing links (or transitional forms)
True or False: Almost all common ancestors are missing links. Family trees display more missing links than actual organisms seen in fossils
True (see photo)
What is a problem with saying homologous structures can prove common ancestors?
Structures (arms, fur, teeth) develop differently in certain embryos period
structures are linked to different genes
if the structures are from a common ancestor, why not form the same way?
T or F: Evolutionists believe mutations and natural selection can produce “homologous structures” in animals that are not even related? (See squirrel photo)
True. (Creationists criticize scientists for proving and disproving relationships. )
This type of structure is one that no longer has a major function (tonsils, appendix, pituitary gland)
Vestigial structure (180 different vestigial structures). Evolutionists: Say vestigials prove evolution Creationists: maybe we don't know what they do yet
Evolutionists (Darwin) believe organisms that share similar structures (like limbs, fur, skin) MUST share a common ancestor. These are called _________ structures?
Homologous Structures
What are two examples of an organism that might be a “missing link”, or might just be an extinct species? ON QUIZ
Trilobites (not a insect or a crab) (see photo)
Archaeopteryx (dinosaur or bird?) (see photo) ON QUIZ
True or False: There are more missing links with no fossils, than real organisms with fossils?
True
True or False” The “Fossil Record” supports the theory of biological evolution?
False
Three reasons why fossil record does NOT support Evolution:
- Haven’t found complete record of all fossils
- No perfect examples of a “missing link”
- Most evidence shows most organisms lived at SAME time, not in a long tree. Genesis flood?