Unit 1 Flashcards

(46 cards)

1
Q

biodiversity

A

variety in creation/ variety of life

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2
Q

species

A

organisms that can breed freely with each other

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3
Q

hybridization

A

cross breeding two different species

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4
Q

morphology

A

physical characteristics/ appearance of an organism

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5
Q

genetic diversity

A

ability to have various genes among the same species/ genetic variability of an organism

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6
Q

structural diversity

A

range/ variety of physical shapes and sizes within a habitat

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7
Q

autotroph

A

uses sources of energy to produce nutrients from water, gases and/ or minerals

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8
Q

heterotroph

A

gets energy by eating organisms

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9
Q

taxonomy

A

the science of classifying organisms

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10
Q

eukaryotic

A

has a nucleaus

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11
Q

prokaryotic

A

no nucleus

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12
Q

viroid

A

a very small infections piece of RNA responsible for some serious diseases in plants

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13
Q

prions

A

are a protien that warps your protiens to be like them

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14
Q

bacteriophage

A

a virus that infects bacteria

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15
Q

virus

A

a small, infectious particle that contains genetic material within a capsule

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16
Q

capsid

A

a protein coat that surrounds the genetic material of a virus

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17
Q

RNA

A

the genetic material that provides instructions for synthesizing protein

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18
Q

epidemic

A

a large-scale outbreak of a disease that is confined to a limited geographic area

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19
Q

pandemic

A

a large - scale outbreak of a disease that occurs over a widespread geographic area

20
Q

lysis

A

the host cell ruptures and releases 100 to 200 new viruses into the host cell’s surroundings

21
Q

lysogeny

A

the condition in which viral DNA stays dormant, continuing to reproduce with a cell’s DNA but not separating from it

22
Q

transduction

A

gene transfer in which a virus transfers DNA from one bacterium to another

23
Q

rabies spreads by…

A

being bitten by infected animal

24
Q

HIV/AIDS spreads by…

A

exchange of bodily fluids

25
Measles spreads by...
direct contact
26
A common cold spreads by...
contact and can be airborne
27
pathogens
infectious bacteria
28
bacteria can cause diseases such as...
cholera, leprosy, typhoid fever, strep throat etc
29
antibiotic
a substance that can kill or weaken micro-organisms; natural antibiotics are produced by bacteria or fungi, whereas synthetic antibiotics are manufactured
30
how many bacteria do you have in your body?
up to 100 trillion
31
how can bacteria be helpful?
- fixing nitrogen - making vitamins K and B12 - used for cheese, yogurt, soy sauce, and chocolate - antibiotics (eg: insulin)
32
cocci
round bacterial cells
33
bacilli
rod-shaped bacterial cells
34
spirilli
spiral/corkscrew shaped bacterial cells
35
diplo-
pairs
36
strepto
clumps
37
staphylo-
strings
38
hyphae
long filaments sharing cytoplasm
39
lichens
combination organism with a fungi and an algae - fungi does the structure and getting water - algae makes food by photosynthesis
40
Mycorrhizae
fungi associated with tree roots - help absorb nutrients and water - get sugars from the tree
41
leaf cutter ants and farmed fungi
- ants provide food for the fungi | - ants eat off of it
42
what are the seven levels of classification?
Kingdom, Phylum, Class, Order, Family, Genus, Species
43
cilia
tiny hairlike protein structures present on the surface of many cells, often found in large groups
44
flagella
relatively long, fine, whiplike structures present on the surface of some cells, occur singly or in small groups
45
pseudopodia
extensions of cell protoplasm; may be blunt or threadlike, from a branching network or be stiffened with and internal supporting system
46
gram positive means...
purple/ the cell wall stained strongly