GEP 1050 section 2

Question 1

Light and Heavy Varients

Answer 1

the number of neutrons in the atom’s nucleus. O16 vs O18

Question 2

Photosynthesis-

Answer 2

he way plants make energy, plants chloroplasts is the powerhouse. The equation CO2+H2O= CH2O+O2

Question 3

Genome

Answer 3

the sum of all genetic materials fertile offspring

Question 4

Macroevolution

Answer 4

-Large changes through time
-result in changes in the entire genome
-takes place over long time scales

Question 5

Natural Selection

Answer 5

is an evolutionary process that determines the fitness of adaptations

Question 6

Bottlenecking event

Answer 6

-a type of natural selection due to an abrupt environmental change
-crash in the Genome.

Question 7

Taxon (taxa)

Answer 7

a group of related organisms that share biological and behavioral traits

Question 8

Homologous trait

Answer 8

has a similar form but a different function, indicating an evolutionary relatedness

Question 9

Analogous trait

Answer 9

different structures yet similar functions, do not indicate a common ancestry.

Question 10

Homoplastic traits

Answer 10

traits that do not indicate evolutionary relatedness, but they have both a similar form and a similar function

Question 11

Phylogeny

Answer 11

takes homologous traits passed down through time

Question 12

Diapsids

Answer 12

ancestors to lepidosaurs and archosaurs

Question 13

Eons

Answer 13

-Eons -> eras
-we are living through the Phanerozoic

Question 14

Biomass

Answer 14

is the amount (weight) of organic matter in an environment

Question 15

GeoChemistry

Answer 15

the chemical composition of geologic materials

Question 16

Oxygen

Answer 16

oxygen isotopes are really sensitive to evaporation which is a function of precipitation and temperature

Question 17

Carbon

Answer 17

12C and 13C
CAM are plants that are in more arid places (succulents)
C3 is for the trees c4 is for the corn

Question 18

Reservoirs

Answer 18

environments where isotopes accumulate and cycle through

Question 19

Stramadalites

Answer 19

-trace fossils
-Archean Eon
-evidence photosynthesizing prokaryotes

Question 20

Laminations

Answer 20

layers that are equal to or thinner than one cm

Question 21

Ripples

Answer 21

wavy undulating layers of sediments that are less than 1 cm thick (usually seen at beaches)

Question 22

Adaptive radiation

Answer 22

the rapid evolutionary increase of many organisms (taxa) over large geographic or oceanographic areas

Question 23

Tiktaalik

Answer 23

*critter
*one of the oldest vertebrates we know of
*considered a transitional creature
*first transitional taxa/fossil found

Question 24

transitional creature

Answer 24

A creature that can function on land or in water

Question 25

The Permian Triassic Extintion

Answer 25

A mass extinction of life (dino death)

Question 26

K/Pg mass extinction

Answer 26

Dinos die

Question 27

Prokaryotic cells

Answer 27

cells that dont have a wall around the nucleus