quiz 1

Question 1

what is biodiversity

Answer 1

a measure of how many different species live in an ecosystem

Question 2

define species

Answer 2

organisms that are capable of breeding freely with eachother under natural conditions
to produce viable and fertile offspring

Question 3

define ecosystem

Answer 3

all the abiotic and biotic factors in a given area

Question 4

define abiotic and biotic

Answer 4

abiotic- not living/ never living
biotic- living/ once alive

Question 5

what are the ambiguous cases for the definition of species

Answer 5

mules- (male donkey+female horse) ambiguous because they cannot create more mules

organisms that reproduce asexually- defined as species based on its physical characteristics

Question 6

what are the 3 categories of bio diversity

Answer 6

1) genetic diversity - within the species there is a large variety within DNA ex. dogs

2) species diversity- within an area there is a variety in the number of types of species ex. rainforest

3) ecosystem biodiversity- refers to the diverse race of habitats, the various organisms that live in the habitats and their relationships that connect them ex. tundra vs rainforest

Question 7

what is genetic diversity

Answer 7

within the species there is a large variety within DNA ex. dogs

Question 8

what is species diversity

Answer 8

within an area there is a variety in the number of types of species ex. rainforest

Question 9

what is ecosystem biodiversity

Answer 9

refers to the diverse range of habitats, the various organisms that line in the habitats, and their relationships that connect them ex. tundra vs rainforest

Question 10

what is taxonomy

Answer 10

the science of classifying organisms (both living and extinct)

Question 11

who developed the taxonomic system and when

Answer 11

Carl Linnaeus in the 1700s

Question 12

what was the taxonomic system based on and what now plays a role in classification

Answer 12

based on structural and physical features (morphology)
today DNA sequence plays a role in classification

Question 13

What are the rules of binomial nomenclature

Answer 13

-two parts
-first part of name - called the genus
—> first letter must be capitalized
—> this part can be written alone
-second part - called the species
—> not capitalized
—> never written alone
-both parts must be italicized

Question 14

what are the seven levels (taxon) of classification

Answer 14

kingdom (6)
phylum
class
order
family
genus
species

Question 15

what are the six parts of the kingdom classification

Answer 15

animal, bacteria x2, plant, fungi, protists

Question 16

what is a dichotomous key

Answer 16

-two part key used to identify living things
-end result is the name of the organism being identified

Question 17

what do you use to identify an organism

Answer 17

dichotomous key

Question 18

how do you start a purpose of a lab

Answer 18

to ___

Question 19

what is the format for a hypothesis

Answer 19

if independent variable then dependent variable

Question 20

how do you name a table

Answer 20

the effect of independent variable on dependent variable

Question 21

what is the order of things that should be stated in a conclusion

Answer 21

1) restate purpose
2) hypothesis -correct/incorrect
3) data
4) scientific reasons
5) therefore (purpose)

Question 22

what is the order of things that should be stated in a conclusion

Answer 22

1) restate purpose
2) hypothesis -correct/incorrect
3) data
4) scientific reasons
5) therefore (purpose)

Question 23

what is a variable

Answer 23

something that is changed

Question 24

what is an independent variable

Answer 24

-the cause
-you decide the way it changes
-on a graph x axis

Question 25

what is the dependent variable

Answer 25

-the effect
-the result of the experiment
-what is being recorded on the chart during the experiment
-on a graph y axis

Question 26

what causes the dependent variable to change

Answer 26

the independent varible

Question 27

what are control variable

Answer 27

all other factors that the experimenter controls within an experiment

stays constant