Quiz 2

Question 0

Evolution results from

Answer 0

Self preservation

Question 1

Evolution is not

Answer 1

Goal-directed , progressive

Question 2

Not all traits are

Answer 2

Adaptive

Question 3

Evolution is under

Answer 3

Genetic and historical constraints

Question 4

There re what’s to fitness?

Answer 4

Trade offs

Question 5

Pleiotrophy

Answer 5

= one gene;many traits

Question 6

Multiple allelism

Answer 6

One trait; multiple alleles

Question 7

Gene linkage

Answer 7

Alleles for depth -> correlated with beak width (a suboptimal trait)

Question 8

What causes genetic constraints?

Answer 8

Lack of allele variation

Question 9

What are fossils?

Answer 9

Direct physical evidence of what organisms lived, where they lived and what they looked like over approximatly 3.5 billion year history of life on earth

Question 10

Where have fossils been discovered?

Answer 10

Rocks through out the world

Question 11

What kinds of rocks are more likely to contain fossils?

Answer 11

Sedementary rocks (limestone, shale and sandstone) and clays

Question 12

Rocks containing fossils are usually

Answer 12

Exposed ( mountain outcrop, natural hill side, edge of stream or quarry)

Question 13

What is a fossilized made up of?

Answer 13

A model made up of sand risk and minerals

Question 14

What are unlikely sources of fossils

Answer 14

Igneous I.e. volcanic, granite, basalt, purnice etc
And metamorphic (slate , marble)

Question 15

How do fossils form

Answer 15

Slow decomposition(stagnant water, acidic and oxygen poor) and rapid burial (water sand mud)

Question 16

Intact fossil

Answer 16

Interior and exterior architecture preserved

Question 17

Compression fossil

Answer 17

Weight compresses organic material cemented into shale , mudstone

Question 18

Cast fossil

Answer 18

Interior decomp, exterior preserved.

Cavity is filled with mineral and debris

Question 19

Per mineralized fossil

Answer 19

Extremely slow decomp, dissolved minerals gradually infiltrate cell interior hardens

Question 20

Fossilization is a

Answer 20

Rare event

Question 21

What is habitat bias?

Answer 21

Find more in certain enviornments that promote fossilization

Question 22

Taxonomic bias

Answer 22

Hard body parts fossilize easier

Question 23

Temporal bias

Answer 23

Time related the longer age you fossilized the harder things are to find

Question 24

Abundance bias

Answer 24

Thing that lived in huge populations are more often fossilized

Question 25

Transitional fossil forms

Answer 25

Fossils that reveal a pathway of anatomical change in a type of organism over time

Question 26

Vestigial trait

Answer 26

A thing that we have but is no longer useful

Question 27

Atavisms

Answer 27

Structures normally absent re-appear in related species; expression of genes from an ancestral species

Question 28

Microevolution

Answer 28

Evolution occurring in real time; over a short enough period that it can be observed

Question 29

Industrial melanism

Answer 29

Organisms darken because of change in industry

Question 30

Homologies/homology

Answer 30

Similarity between characteristics of organisms that is due to shared ancestry(when specifies share a trait)

Question 31

Structural homology

Answer 31

Similar anatomy among organisms due to a common ancestor