biodiversity

Question 1

why is biodiversity so important?

Answer 1

maintains stability in ecosystems, supports habitats for species providing food, shelter, nutrients etc.

Question 2

what are the 3 levels of biodiversity?

Answer 2

SPECIES DIVERSITY- the # of species in a particular ecosystem.

GENETIC DIVERSITY- the difference among species.

ECOSYSTEM DIVERSITY- the types of ecosystems in a particular place and how they effect us.

Question 3

species diversity?

Answer 3

the # of species in a particular ecosystem.

Question 4

genetic diversity?

Answer 4

the difference among species.

Question 5

ecosystem diversity?

Answer 5

the types of ecosystems in a particular place.

Question 6

what is a keystone species?

Answer 6

an organism that helps define an entire ecosystem, they play a greater role in maintaining the ecosystem. EX- OTTERS, HONEY BEES.

Question 7

binomial nomenclature?

Answer 7

a system of naming plants and animals in which each species is given a name consisting of two terms of which the first names the genus and the second the species itself.

Question 8

7 taxonomic categories?

Answer 8

CAPSLE- helps keep the cell from drying out and helps it stick to food and other cells.

CELL WALL- maintaining shape of the cell.

RIBOSOMES- where proteins are made.

NUCLEOID- a ring made up of DNA.

FLOGELLA- a whip like tail for movement.

CYTOPLASM- jelly like substance that keeps everything together.

PILI- structures that help bacteria too sick to other tissue.

Question 9

what is capsule?

Answer 9

helps keep the cell from drying out and helps it stick to food and other cells.

Question 10

what is cell wall?

Answer 10

maintaining the shape of a cell.

Question 11

what is ribosomes?

Answer 11

where protein is made?

Question 12

what is nucleoid?

Answer 12

a ring made up of DNA.

Question 13

what is flogella?

Answer 13

a whip like tail for movement.

Question 14

what is cytoplasm?

Answer 14

a jelly like substance which holds everything together.

Question 15

what is pili?

Answer 15

structures that help bacteria stick to other tissue.

Question 16

what are the 3 domains?

Answer 16

ARCHAEA BACTERIA- ancient, can live through rough conditions.

EUBACTERIA- contains bacteria and cyanobacteria.

EKARYOTES- organisms that have a defined nucleus.

Question 17

what is Archaea bacteria?

Answer 17

ancient, can live through rough conditions.

Question 18

what is eubacteria?

Answer 18

contains bacteria and Cyanobacteria.

Question 19

what are Eukaryotes?

Answer 19

organisms that have a defined nucleus.

Question 20

what are Prokaryotes?

Answer 20

PROKAYOTES are organisms whose cells lack a nucleus and other organelles. larger and more complex.

examples are blue-green algae and bacteria

Question 21

what are Eukaryotes?

Answer 21

EUKARYOTE- The eukaryotic cell has a defined nucleus.

examples are plants and fungi.

Question 22

what is the difference between prokaryotes and eukaryotes?

Answer 22

eukaryotes have a defined nucleus where prokaryotes do not. prokaryotes are small and simple and eukaryotes are large and complex.

Question 23

size of bacteria ?

Answer 23

1-10 microns

Question 24

size of viruses?

Answer 24

20-400 nm

Question 25

sexual and asexual reproduction in bacteria.

Answer 25

Asexual reproduction occurs by binary fission, wherein a cell divides into two. sexual reproduction is a process called conjugation.

Question 26

different shapes and grouping in bacteria?

Answer 26

-spherical - coccus -rod – bacillus -coiled – spirillum

Question 27

how to fight bacteria and viruses

Answer 27

Wash your hands with soap and water. Keep your hands away from the face. Stay away from people who are sick and avoid others if you are sick.

Question 28

characteristics of bacteria and viruses?

Answer 28

bacteria are free-living cells that can live inside or outside a body, while viruses are a non-living collection of molecules that need a host to survive

Question 29

lytic vs lysogenic?

Answer 29

The lytic cycle leads to the death of the host, whereas the lysogenic cycle leads to integration of phage into the host.

Question 30

what is lytic?

Answer 30

make viruses worse.

Question 31

what is lysogenic?

Answer 31

LYSOGENIC- intergrate viral DNA into bacterial DNA. - reproduce with bacteria.

Question 32

what is an antibody?

Answer 32

ANTIBODIES are a protein produced by your immune system to attack and fight off these antigens.

Question 33

What is an antigen?

Answer 33

ANTIGENS are a foreign substance that enters your body. This can include bacteria, viruses, fungi, allergens, venom and other various toxins.

Question 34

different ways we can develop immunity.

Answer 34

exposure to the virus breast milk

Question 35

ecological roles of bacteria

Answer 35

Bacteria are decomposers which break down dead material and recycle it. They also can be producers, making food from sunlight, such as photosynthetic bacteria

Question 36

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

Answer 36

Antibiotic resistance results in a decreased ability to treat infections and illnesses in people. This can lead to the following problems: increased human illness, suffering and death, increased cost and length of treatments.

Question 37

what ways can u classify bacteria.

Answer 37

-Scientific name. -Bacteria shapes. -Need for oxygen.

Question 38

what ways can you classify viruses?

Answer 38

size and shape, chemical composition, and mode of replication.