Download Evolution questions answers

Name __________________________________
Evolution Questions:
1) Who was Charles Darwin? What did he study and where did he do most of his
observations?
2) What is the name of Darwin’s theory? The theory of evolution by natural selection.
3) What does “survival of the fittest” mean and provide an example. Those that survive and
mate more frequently are “fitter”.
4) Who developed the theory of Acquired Characteristics? Jean B. Lamarck
5) Do we accept Lamarck’s ideas today? Why or why not? NO. Organisms can’t receive
their genes from their parents in this fashion.
6) What are Homologous structures? Provide an example. Same structure different function.
Leg of a horse, arm of a man, flipper of a whale.
7) What are vestigial structures? Provide an example. Structure that does not presently seem
to have a function. Tail bone, hip bone in whales.
8) What are Analogous structures? Provide an example. Same function different structures,
Wing of a bird and the wing of a butterfly.
9) What does Comparative Embryology mean? Organisms develop through similar
structures in embryo development.
10) Name a way that fossils can be dated. Carbon 14 half life. Half - live
11) What is a ‘half-life’? the amount of time it takes for one half of a radioactive substance
to decay to a non-radioactive form.
12) How does punctuated equilibrium differ from gradualism? Fast changes in a short
geologic time period vs slow ‘gradual’ changes during a geologic time period.
Who am I:
13) _fossil__ I am usually formed in sedimentary rock.
14) __Darwin___ I observed the adaptation of species in the Galapagos Islands.
15) ___vestigial_
I am a structure that is no longer used.
16) ___homologous__ I am a structure that is derived from a common ancestor.
17) ____C 14___ I have a ‘half-life’ of 5730 years.
18) ____Darwin_ I developed the theory of natural selection.
19) _Industrial Melanism_ I am the selection for darker coloration of individuals in an urban
environment.
Match each phrase with one of the four evidences.
FOSSILS
COMPARATIVE ANATOMY
BIOCHEMISTRY
COMPARATIVE EMBROLOGY
20) _Biochemistry____ All species are made of the same 20 amino acids.
21) ______C. Anatomy_________ Appendix and tail bone.
22) ________Biochemistry____ The amino acids in humans and gorilla hemoglobin is almost
identical.
23) _____fossils____ Age of a specimen can be measured by radioactive decay.
24) ______C. Embryo.__________ Developmental patterns are similar.
25) _Fossil___ Special conditions are required. Soft tissue usually doesn’t preserve.
26) ______C. Anatomy__________ Structures derived from a common ancestor.
27) ______Biochemistry____ The building blocks of life contain oxygen, carbon and hydrogen.
28) ______C. Embryo._______ Gill slits.
Isolation mechanisms : The separation of populations into groups that no longer interact.
29________Temporal______ we mate at different times of the day
30_Geographic____ we can’t mate because there is a mountain between us
31____genetic_Isolation__ our chromosome numbers are different
32____behavioral_________his mating dance just doesn’t do anything for me!
33__structural Isolation_______ we can’t mate because things just don’t “fit”
34____gametic isolation__the enzymes on the male gamete do not work on the female gamete