unit test

Question 1

what is biodiversity and why is it so important?

Answer 1

refers to the life form on earth such as animals, humans and plants. its important because it helps maintain and balance the ecosystems

Question 2

why is biodiversity so important for the survival and success of an ecosystem?

Answer 2

• genetic variation
• every element plays a distinct role which allows ecosystems to survive and thrive.

Question 3

who is considered the father of taxonomy?

Answer 3

Carols Linaeus

Question 4

how did the father of taxonomy propose that all living things be classified?

Answer 4

• taxa ranges from kingdom to species created 2 part naming system

Question 5

what is the 2 part naming system used in taxonomy?

Answer 5

Binomial nomenclature- need to be able to identify species and people.

Question 6

what is included in 2. parts of an organisms name?

Answer 6

Genus and Species

Question 7

list the taxonomic levels from broad to specific

Answer 7

Domain, Kingdom, phylum, class, order, family, genus, species

Question 8

what is species diversity

Answer 8

of species in a particular ecosystem

Question 9

what is genetic diversity?

Answer 9

the difference among species

Question 10

what is ecosystem diversity?

Answer 10

the types of ecosystems in a particular place.

Question 11

what is a keystone species with an example.

Answer 11

honey bees. species that can greatly affect the population.

Question 12

how does the green world hypothesis differ from the bottom up view?

Answer 12

it proposed that predators keep the herbivore population in check so they don’t eat all the plants.

Question 13

what is a dichotomous key?

Answer 13

a series of events to identify am organism using its observable traits

Question 14

difference between prokaryote and eukaryote

Answer 14

eukaryotes have a true nuclear and organelles where prokaryotes are very small and simple and lack organelles.

Question 15

list the 6 kingsdoms of life

Answer 15

eubacteria, archaea, protista, plantae, fungi, Animalia

Question 16

identify eubacteria

Answer 16

unicellular, both heterotroph and autotroph, prokaryotic, has cell wall

Question 17

identify archaea

Answer 17

unicellular, autotrophic, prokaryotic, has cell wall

Question 18

identify protista

Answer 18

mostly unicellular, both heterotrophic and autotrophic, eukaryotic, usually no cell wall

Question 19

identify plantae

Answer 19

multicellular, autotrophic, eukaryotic, have cell walls

Question 20

identify fungi

Answer 20

multicellular, heterotrophs, eukaryotic, cell walls made of chitin

Question 21

identify Animalia

Answer 21

multicellular, heterotrophic, eukaryotes, lack cell walls

Question 22

what was the original name that all bacteria were once grouped under?

Answer 22

kingdom monero

Question 23

what are the 3 bacterial shapes

Answer 23

sherical- coccus
rod- bacillus
coil- spirillum

Question 24

what are the simple colonies

Answer 24

mono- one
diplo- 2
staphylo- clusters
strepto- chains

Question 25

difference between eubacteria and archaea bacteria

Answer 25

Archie can live through rough conditions eubacteria are found everywhere

Question 26

difference between conjugation and binary fission

Answer 26

binary copies the nuclear and splits conjugation joins a partner and swaps DNA

Question 27

some roles bacteria have in an ecosystem

Answer 27

decomposing and recycling nutrients.

Question 28

different conditions bacteria survive in

Answer 28

extreme PH, lakes and springs, harsh conditions.

Question 29

examples of benefcial bacteria and harmful bacteria

Answer 29

beneficial - lies in gut and helps break down food harmful- E.Coli goes in gut and makes people sick.

Question 30

why are viruses not considered living?

Answer 30

no charecteristics of living cells, must invade a cell to reproduce.

Question 31

compare DNS. and. RNA

Answer 31

DNA- replicate in the host cytoplasm directly RNA- inject RNA in cytoplasm of host cell to replicate.

Question 32

compare lytic and lysogenic cycle

Answer 32

In the lytic cycle, a virus quickly makes copies of itself and bursts the host cell. In the lysogenic cycle, the virus sneaks its DNA into the host's DNA and stays hidden for a while before it can become active

Question 33

why is there a new flu shot every year

Answer 33

bacteria is always evolving and becoming stronger.

Question 34

positive uses for viruses

Answer 34

phage therapy to kill harmful bacteria

Question 35

what is a vaccine? how do we develop immunity?

Answer 35

a vaccine puts the virus in you so you develop the antibodies to fight it. we develop immunity by exposure to viruses that develop antibodies

Question 36

are protists considered eukaryotic and unicellular ?

Answer 36

yesh

Question 37

how do protists obtain nutrients

Answer 37

some autotrophic and make their own food through photosynthesis, while others are heterotrophic and consume organic matter or other organisms.

Question 38

the importance of protists in ecosystems

Answer 38

help keep bacteria in check

Question 39

what is antibiotic resistance and how can it affect your life?

Answer 39

decreased ability to treat infections and illnesses in people which can lead to death and illness

Question 40

what are the 3 domains

Answer 40

ARCHAEA BACTERIA- ancient, can live through rough conditions. EUBACTERIA- contains bacteria and cyanobacteria. EKARYOTES- have a nucleas and organelles

Question 41

what is cladogram and phylogenetic trees

Answer 41

phylogenetic Is the eveloution caladogram are observable traits