Unit 1 Vocab

Question 1

mutation

Answer 1

random change

Question 2

immigration

Answer 2

move into a population

Question 3

emigration

Answer 3

move out of a population

Question 4

autotrophic

Answer 4

no organism that can produce it’s own food using light, water, carbon-dioxide or other chemicals

Question 5

photosynthesis

Answer 5

the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar

Question 6

adaptation

Answer 6

changes in a population over time

Question 7

relative age

Answer 7

age of fossil as determined by layers found according to geological scale

Question 8

absolute age

Answer 8

using radiometric age

Question 9

embryology

Answer 9

study of how organisms develop

Question 10

homologous structures

Answer 10

occur in different species that originated from same ancestor species = closely related

Question 11

biogenesis

Answer 11

living things come from other living things

Question 12

half-life

Answer 12

amount of time it takes for half of a sample to decay to stable form

Question 13

isotope

Answer 13

elements that differ in number of neutrons

Question 14

microscope

Answer 14

spherical, composed of many protein molecules that are organized as a membrane

Question 15

coacervates

Answer 15

collection of droplets that are composed of lipids, amino acids, and sugars

Question 16

RNA

Answer 16

a nucleic acid present in all living cells that has structural similarities to DNA.

Question 17

anaerobic

Answer 17

without oxygen

Question 18

heterotrophic

Answer 18

different to eat

Question 19

prokaryotes

Answer 19

cells that have no nucleus and no nucleus membrane

Question 20

aerobic

Answer 20

free oxygen

Question 21

eukaryote

Answer 21

organisms whose cells have a nucleus enclosed within a nuclear envelope

Question 22

speciation

Answer 22

how a new kind of plant or animals species is created

Question 23

chemosynthesis

Answer 23

occurs in bacteria and other organisms and involves the use of energy released by inorganic chemical reactions to produce foods

Question 24

analogous structures

Answer 24

closely related functions but derived from different ancestral species = not closely related

Question 25

alleles

Answer 25

variations of genes that code for various traits