Final Exam 1

Question 1

What are the building blocks of life?

Answer 1

Carbs, DNA, RNA, Proteins, Lipids (macromolecules)

Question 2

What are the 6 elements that life is made of?

Answer 2

H, C, O, N, P, S

Question 3

Where were amino acids found?

Answer 3

in meteorites

Question 4

What are the three domains of life?

Answer 4

Bacteria, archaea, eukaryote

Question 5

What are the two cell types?

Answer 5

prokaryotes and eukaryotes

Question 6

Define prokaryote

Answer 6

no nucleus (bacteria and archaea)

Question 7

Define eukaryotes

Answer 7

has nucleus and other internal compartments

Question 8

What is the serial endosymbiosis theory?

Answer 8

the eukaryotes arose through the merger of multiple prokarkotes

Question 9

What are the 5 kingdoms

Answer 9

animalia, plantae, fungi, protista, prokaryotae

Question 10

When did life begin on earth (according to what)?

Answer 10

3.5 Billion years ago. based on the age of fossilized stromatolites

Question 11

When did earth form?

Answer 11

4.5 billion years ago

Question 12

Autotrophs:

Answer 12

Uses CO2 to make organics (all plants, some protista and bacteria. Uses sunlight (photo-) or chemical (chemo-) energy

Question 13

Heterotrophs:

Answer 13

Have to eat organics (everything that is not an autotroph)

Question 14

Mixotrophs

Answer 14

Can use CO2 to make organics or they can eat organics

Question 15

Two forms of autrophy in the ocean

Answer 15

Chemosynthesis and photosynthesis

Question 16

Can bacteria photosynthesis

Answer 16

some bacteria can

Question 17

Bethnic

Answer 17

(bottom) marine organisms live on the sea floor

Question 18

Pelagic

Answer 18

marine organisms that live in the sea (of the sea) (Plankton, which are drifters or weak swimmers)

Question 19

Infauna

Answer 19

animals living within sediments

Question 20

Epifauna

Answer 20

animals living on the surface of the sea floor

Question 21

Nekton

Answer 21

swimmers