WorksheetsEvidence of Evolution
Total questions: 15
Worksheet time: 19mins
Vestigial structures
structures that perform a similar function but are not similar in origin
remnants of once-important structures that have slowly lost all or most of their function
features found in different organisms that share structural similarities but may have very different functions
preserved remains of an organism
What is this an example of?
Homologous structure
Analogous structure
Vestigial organs
Functional adaption
What best describes the hind leg bones seen in the whale?
The bones are analogous structures to the fins of living fish.
The bones are vestigial structures that had a function in an ancestor.
The bones are homologous structures to the wings of butterflies.
The bones are fossil structures from an extinct ancestor.
The forelimbs of humans, cats, whales, and bats are similar in structure due to having a common ancestor hundreds of millions of years ago. Is this considered homolgy or analogy?
Homology
Analogy
Which of the following are homologous structures?
whale flipper and bat wing
legs on a beetle and legs on a cat
The cave fish and minnow are related to each other but the cave fish is blind and only has the remnants of an eye. What type of structure is this?
vestigial
analogous
Scientists are studying a particular protein found in blood cells. Based on this, which animals are most closely related?
Dog: ARG - LYS - HIS - TYR
Rabbit: ARG - LYS - TYR - TYR
Elk: ARG - PRO - TYR - ARG
Dog & Rabbit
Rabbit & Elk
Dog & Elk
