My Crossword Maker Logo
Powered by BrightSprout
Save Status:
or to save your progress. The page will not refresh.
Controls:
SPACEBAR SWITCHES TYPING DIRECTION
Answer Key:
Edit a Copy:
Make Your Own:
Crossword Word Search Worksheet
Rate This Puzzle:
Log in or sign up to rate this puzzle.

Evidence of Evolution INB 75 Per 7

Across
Embryos of all vertebrates look very ____ in the first few weeks of development
Genes that carry functional DNA but are no longer in use
Organ in humans that is vestigial (sometimes you have it removed when it gets inflamed)
a group of fossils which has been analyzed and arranged chronologically and in taxonomic order. Fossils are created when organisms die, are incased in dirt and rock, and are slowly replaced by minerals over time.
Fossils are dated to determine this using carbon-14 dating
Fossils found in the upper sedimentary layers are usually younger than those in deeper layers
Trace or remnant of an organism from the past preserved in the earth's crust
branch of biology and medicine concerned with the study of embryos and their development
Down
Structures that remain that had an early function but are no longer needed today
Different types of ____ are examples of analogous structures
All animals with a backbone belong to this group
Types of rock or sediment can determine the type of ___ the fossil came from
This is sequenced to determine the order of nucleotides to see if organisms match or are related
Structures that are similar in build but different in function and appearance
Evolutionary tree that proposes how species are related through common ancestors
These are sequenced to determine order of amino acids in proteins
Mammals, reptiles, birds, fishes, and ___ are all examples of vertebrates
Relating to body structure or how bodies are built
Structures that perform similar functions but are built differently
Proposed evolutionary history for a group of species