PART 1

Question 1

the 3 under of post zygotic isolation

Answer 1

inviability- do not have compatible chromosome

breakdown- not suited for their environment.

infertility- sterile.

Question 2

the 5 under of zygotic isolation

Answer 2

mechanical- reproductive organ is incompatible of each other.

temporal- different in reproductive cycle.

behavioral- different courtship

geo/habitat- diffferent habits or inch.

gametic- cannot bind but same spicies can penetrate the egg.

Question 3

the 5 mechanisms of evol

Answer 3

mutation- hereditary

recombination- recombined to produce and recombination to creates genetic divertsity.

gene flow- genes in and out of population.

natural selection- FITNESS, ability to survive, reproduce.

genetic drift- unpredictable changes due to small population size.

Question 4

describe the pre cambrian era

Answer 4

proterozoic- bacteria, blue green algae
archean- oldest fossil
hadean- beginning of earth

Question 5

the 5 under of zygotic isolation

Answer 5

mechanical- reproductive organ is incompatible of each other.

temporal- different in reproductive cycle.

behavioral- different courtship

geo/habitat- diffferent habits or inch.

gametic- cannot bind but same spicies can penetrate the egg.

Question 6

describe the phanerozoic era

Answer 6

cenozoic- age of man
mesozoic- age of reptiles
paleozoic- PANGEA

Question 7

geological time scale pagkasunod sunod

Answer 7

eon-era-period-epoch

Question 8

Who is MILLER - UREY. What did they invented, used and whats the early earths ocean

Answer 8

-1953, harol urey and stanley miller, recreate the atmospheric conditions.
-recreate the primordial soup reprsents the early earths ocean.

Question 9

The years of universe, milky way and how did this collapse, and the estimated age of earth

Answer 9

universe= 14 B
milky way= 10 B, collapse of clouds of DUST
earth age= 4.6 B