Exam 1-Lab And Class

Question 1

Total Magnification

Answer 1

Objective lense(4, 10, 40) multiplied by eye piece(10)

Question 2

Resolution

Answer 2

Ability to distinguish detail

Question 3

Parfocal

Answer 3

Is a lens that stays in focus when magnification/ focal length is changed

Question 4

Ectoparasite

Answer 4

Parasite that is in part outside of its host
Ex. Indian Pipe

Question 5

Endoparasite

Answer 5

Parasite that lives inside host

Question 6

Definitive Host

Answer 6

Where the parasite can reach sexual maturity and reproduce

Question 7

Intermediate host

Answer 7

Cannot reproduce

Question 8

Resivoir Host

Answer 8

Animal that is infected by a parasite, and serves as a source of infection for humans or another species

Question 9

Two parts of Evolution

Answer 9

Pattern- observations of changes in life over time
Process- mechanisms that cause this change

Question 10

Adaption (Lamark)

Answer 10

Inherited characteristics that enhance organisms abilities to survive and reproduce in specific environments

Question 11

Natural Selection

Answer 11

Individuals that have certain traits, those inherited traits tend to survive and reproduce at higher rates than other individuals

Question 12

Human evolution

Answer 12

Last common ancestor between monkeys and apes lived about 25 million years ago, last comman ancestor between humans and chimpanzees lived between 8 and 6 million years ago

Question 13

Homology

Answer 13

Characteristics that have an underlying similarity, but function differently

Question 14

Homologus structures

Answer 14

Variations on structural theme that was present in their common ancestor

Question 15

Vestigial structures

Answer 15

Reminant features that served a function in the past

Question 16

Lotic

Answer 16

Moving water
Lo is flow
Ex. Rivers, creeks, streams

Question 17

Lentic

Answer 17

Non moving water
Ex. Ponds, lakes, wetlands

Detrital Rain: most nutrients go to the bottom due to lack of movement

Question 18

Thermocline

Answer 18

The boundary between warm and cold (found in lentic systems)

Question 19

Eutrophic

Answer 19

High productivity
Brown/Green, murky, tons of life

Question 20

Mesotrophic

Answer 20

Medium productivity

Question 21

Oligotrophic

Answer 21

Low productivity
Clear blue water, low life, few nutrients

Question 22

Productivity

Answer 22

Biomass Production
“Life in area”
Amount of photosynthetic production

Question 23

Hardy-Weinberg Theory

Answer 23

Compare allele and genotype frequencies from one generation to the next

If they change, evolution has occured

Question 24

Hardy-Weinberg Theory Conditions

Answer 24

not attainable
-No new mutations occur
-No natural selection occurs
-The population is so large that allele frequencies do not change due to random spelling error
- No migration occurs between different populations
-random mating

Question 25

Microevolution

Answer 25

Involves changes in allele and genotype frequencies from one generation to the next

Question 26

Sexual Selection

Answer 26

Natural selection involving traits related to reproductive success

Question 27

Intrasexual Selection

Answer 27

Members of one sex compete physically for access to the opposite sex

Question 28

Intersexual selection

Answer 28

Members choose mate based on desireable traits

Question 29

Genotype

Answer 29

Genetic makeup of an organism

Question 30

Phenotype

Answer 30

Observable physical and physiological traits of an organism

Question 31

Allel

Answer 31

Any alternative gene that may produce different phenotypic effects