likeness in structure between parts of different organisms
What is Homology?
100
"The same organ in different animals under every variety of form and function."
What is Richard Owen's definition of homology?
100
Most plants have ______ that serve different functions and have different appearances.
What are leafs?
100
Several animals, including pigs, cattle, deer, and dogs have reduced, non-functional digits, referred to as ________.
What is a dewclaw?
100
Organisms that are closely related to one another share many ________ ________.
What is an anatomical similarity?
200
due to evolutionary differentiation from a corresponding part in a common ancestor
How is Homology formed?
200
A bat's wing, a seal's flipper, a cat's paw, and a human's hand
What is an underlying structure?
200
They are homologies because they all derive from the same _______ _____.
What is an original leaf?
200
This animal has lost digit 1 completely, digits 2 and 5 have been greatly reduced, and only 3 and 4 support the body.
What is a pig?
200
These similarities are sometimes conspicuous, as between _______ and _______.
What is a crocodile and an alligator?
300
Relating to the correspondence between an antigen and the antibody produced in response to it.
What is Immunology Homology?
300
Identical or very similar arrangements of bones and muscles.
What is an archetype?
300
These mammals are commonly known as being ancestors to humans.
What is an ape?
300
Most animals in the same _______ have similarities that show evidence that there is some common ancestors.
What is a specie?
300
Whales and Humming Birds have _______ skeletons inherited from a common ancestor.
What is a tetrapod?
400
Having the same morphology and linear sequence of gene loci as another chromosome.
What is Genetics Homology?
400
Distinguished homology from analogy (also known as homoplasy).
Who is Richard Owen?
400
______ and _____ have chests that are broader than they are deep, with shoulder blades flat in the back.
What are people and apes?
400
Any of the bones of the foot.
What is a metatarsal?
400
Parts have similar animals have been modified or completely lost because of their ________.
What is an adaptation?
500
Belonging to or being a series of organic compounds each successive member of which differs from the preceding member by a constant increment, especially by an added CH2 group.
What is Chemistry Homology?
500
Part or organ in one animal which has the same function as another part or organ in a different animal.
What is analogy?
500
1. A person, typically one more remote than a grandparent, from whom one is descended.
2. An early type of animal or plant from which others have evolved.
What is an ancestor?
500
A bone of a finger or toe.
What is a phalange?
500
Species may look different but their similarities can be seen by looking at their ________.