life history

Question 1

the study of fossils

Answer 1

paleontology

Question 2

paleontologist may infer what past organisms were like based on the

Answer 2

fossil record

Question 3

species that were once living but are now gone

Answer 3

extinct

Question 4

still living

Answer 4

extant

Question 5

fossils come in

Answer 5

all shapes and sizes

Question 6

fossils can vary from

Answer 6

microscopic organisms to full skeletons

Question 7

what types of fossils are there

Answer 7

eggs, footprints, and poop

Question 8

fossils mostly form from

Answer 8

sedimentary rock

Question 9

How do fossils form

Answer 9

over the years sediment builds up over the dead animal making a cast and new rock

Question 10

How can age be determined in a fossil

Answer 10

relative and radioactive dating

Question 11

age determination based upon layering relative to other fossils in other layers

Answer 11

Relative dating

Question 12

existed for a short time but had a wide geographic range

Answer 12

index fossils

Question 13

age determination based on radioactive elements

Answer 13

radioactive dating

Question 14

radioactive elements decay at a

Answer 14

steady rate

Question 15

length of time required for half of the radioactive atom to decay

Answer 15

half-life

Question 16

what is C-14 half life

Answer 16

5730 years

Question 17

what is k-40 half life

Answer 17

1.26 billion years

Question 18

Time is broken up in

Answer 18

changes in environments and diversity

Question 19

Humans appear in the last

Answer 19

second of the day compared to earth clock

Question 20

large-scale evolution that occurs over a long period of time

Answer 20

Macroevolution

Question 21

99% of all species that have lived are now

Answer 21

extinct

Question 22

usually go extinct due to

Answer 22

natural selcction

Question 23

does occur and causes disruptions in the food web and energy flow

Answer 23

mass extinction

Question 24

is more of a business as usual event

Answer 24

background extinction

Question 25

extinction of a species or population opens the door for other species to evolve

Answer 25

more rapidly

Question 26

What are the patterns and process of evolution

Answer 26

Speciation and extinction, Rate of evolution, adaptive radiation and Convergent evolution, Coevolution

Question 27

involves a slow, and steady change in a particular line of descent

Answer 27

gradualism

Question 28

involves stable periods interrupted by evolution

Answer 28

Punctuated equilibrium

Question 29

evolution of a single species or group through natural selection and other processes into diverse forms that live in different ways

Answer 29

Adaptive radiation

Question 30

Process by which unrelated organisms come to reassemble each other

Answer 30

convergent evolution

Question 31

similar functions, but different forms and do not share an evolutionary history

Answer 31

analogous structures

Question 32

the process by which two species evolve in response to changes in each other over time.

Answer 32

coevolution

Question 33

are but have not cells, but have selectively permeable membranes and means to store and release energy

Answer 33

proteinoid micrspheres

Question 34

the appearance of oxygen in the atmosphere drove some life forms to

Answer 34

extinction while some survived and thrived in the new environment

Question 35

what did sexual production allow

Answer 35

it allowed greater diversity in the offspring because they were no longer and exact copy of the previous generation