Exam 2

Question 1

Mitosis

Answer 1

One cell splits into two and all the chromosomes are the same.

Question 2

Meiosis

Answer 2

One cell splits into four and all have halve the chromosomes.

Question 3

Law of segregation

Answer 3

There are two factors in every trait. One dominate and one recessive passed through gametes.

Question 4

Law of independent assortment

Answer 4

traits are inherited independently

Question 5

RNA

Answer 5

A nucleic acid present in all living cells.

Question 6

Transcription

Answer 6

Coping the genetic process from DNA to RNA.

Question 7

Translation

Answer 7

The process of converting info from RNA bases to amino acids.

Question 8

absolute dating

Answer 8

gives a date in years using isotopes

Question 9

RNA world hypothesis

Answer 9

RNA was one of the first organic molecule

Question 10

Permian extinction

Answer 10

90% of life extinct

Question 11

Binomial nomenclature

Answer 11

A two word name for each species

Question 12

phylogenic classification

Answer 12

classification based on evolutionary history

Question 13

adaptive radiation

Answer 13

a single species evolves into many new species

Question 14

ecology

Answer 14

study of how things interact with the enviroment

Question 15

niche

Answer 15

role of a species in a ecosystem

Question 16

competitive exclusion princible

Answer 16

two species cannot occupy the same niche for long

Question 17

trophic levels

Answer 17

the feeding positions in a food chain or web

Question 18

consumers

Answer 18

herbivores, carnivores, omnivores, decomposers, scavengers, detritivores, seprotrophs

Question 19

carbon cycle

Answer 19

carbon moves from one resovour to another

Question 20

community

Answer 20

all bionic parts of an ecosystem

Question 21

ecological succession

Answer 21

how population change through time

Question 22

demographics

Answer 22

study of populations and how they grow

Question 23

sporophytes

Answer 23

seeds and pollen

Question 24

vascular plants

Answer 24

plants on land

Question 25

plant tissue

Answer 25

dermal - outer layer
ground - internal plant
vascular - runs through ground tissue