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Question 1

what structures are present in prokaryotes?

Answer 1

cell wall, ribosomes, plasma membrane

Question 2

what would be less likely to fossilize?

Answer 2

skin

Question 3

the protein first hypothesis assumes that

Answer 3

proteins enzymes came before DNA

Question 4

what is the endosymbiotic theory?

Answer 4

the belief that mitochondria and chloroplasts evolved from prokaryotic ancestors

Question 5

what are the possible causes of the Devonian extinction?

Answer 5

continental drift, a bolide event

Question 6

what substances are being transformed during glycolysis?

Answer 6

chemical bonds

Question 7

eukaryotic cells have?

Answer 7

nucleus, membraneous organelles

Question 8

what is the flow of information that is described by the central dogma of genetics?

Answer 8

DNA, RNA, protein

Question 9

which dinosaurs most likely gave rise to birds?

Answer 9

tyrannosaurus rex, velociraptors

Question 10

membrane first hypothesis?

Answer 10

plasma membrane was the first cell component to form

Question 11

what are fossils?

Answer 11

any remains or traces of past life

Question 12

stages of non living matter to origin of life? (4)

Answer 12

organic monomers, organic polymers, protocells, living cells

Question 13

with regard to nutrition, which two were most likely used by the earliest cells?

Answer 13

heterotrophic, chemosynthetic

Question 14

what is the first stage of cellular respiration?

Answer 14

glycolysis

Question 15

what are index fossils?

Answer 15

fossils used to identify deposits made at the same time in different parts of the world.

Question 16

examples of megauna?

Answer 16

wooly rhinosoreous, mammoth, mastodons, giant ground sloths

Question 17

what is absolute dating?

Answer 17

measuring the radioactive isotopes from fossils in order to estimate of the fossils

Question 18

what is sedimentation?

Answer 18

the process by which particulate material, carried by moving water, eventually settles.

Question 19

what is a protocell?

Answer 19

a structure that is characterized by having an outer membrane.

Question 20

what is abiogenesis?

Answer 20

the origin of life from non living matter

Question 21

what is macroevolution?

Answer 21

the origin of new species as recorded in the fossil record

Question 22

what are molecular clocks?

Answer 22

based on the principle that mutations in certain parts of the genome occur at a fixed rate and are not tied to natural selection.

Question 23

which have been involved in the formation of the first polymers on earth?

Answer 23

thermal vents, iron nickel sulfides

Question 24

what is a stratum?

Answer 24

a recognizable layer of sediment in a stratigrpahic sequence.

Question 25

what drop of organisms is the most likely ancestor of the Ordovician period land plants?

Answer 25

algae