Unit 1 Flashcards

1
Q

What is the dependent variable?

A

The thing that you dont change in your experiment

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2
Q

What is Biology?

A

The study of al living things

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3
Q

What are organisms?

A

Living things

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4
Q

What is cytoplasm?

A

A gel like material that all cells contain

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5
Q

What are organelles?

A

A part of the cell that does different jobs

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6
Q

What are prokaryotic cells?

A

They are single celled organisms that lack a nucleus and membrane-bound organelles

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7
Q

What are eukaryotes?

A

Has a true nucleus and membrane-bound organelles

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8
Q

What is DNA?

A

DNA carries the genetic code for all organisms

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9
Q

What is an indepent variable?

A

The thing that you change in your experiment

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10
Q

What is a Biotic factor?

A

All the living organisms that inhabit an enviorment

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11
Q

What are Abiotic factors?

A

The nonliving parts of an organisms enviorment

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12
Q

What is a habitat?

A

The place a plant or animal lives

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13
Q

What is a Niche?

A

An organism’s total way of life

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14
Q

What is population?

A

A group of organisms that are all of the same speices, which interbreed and live in the same place at the same time

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15
Q

What is a community?

A

All the populations of different speices that live in the same place at the same time

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16
Q

What is an ecosystem?

A

Populations of plants and animals that interact with each other in a given area with the abiotic componets of that area

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17
Q

What is the biosphere?

A

The portion of earth that supports life

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18
Q

What is a herbivore?

A

Only eats plants

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19
Q

What is an omnivore?

A

Eats both plants and meat

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20
Q

What is a carnivore?

A

Only eats meat

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21
Q

What is symbosis?

A

An interaction between two different organisms living in close association.

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22
Q

What is mutualism?

A

Beneficial to both organsims involved

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23
Q

What is commensalism?

A

The association between two organisms in which one benefits and one is neither helped not harmed.

24
Q

What is parasitism?

A

One orgainsim benfits and one is harmed

25
What are producers?
Producers are plants that make their own food.
26
What is ecology?
The relations of organisms to one another and their surroundings.
27
What's a consumer?
Animals that can't make their own food so they need to comsume other plants and/or animals.
28
What is biodiversity?
The variety of life in the world or in a particular habitat or ecosystem.
29
What is a decomposer?
An organism, especially a soil bacterium, fungus, or invertbrate, that decomposes organic material.
30
What is a food web?
A system of interlocking and interdependent food chains.
31
What is a food chain?
A series of organisms each dependent on the next as a source of food.
32
What is an energy pyramid?
Its a model of energy flow in a community. The different levels represent different groups.
33
What are limiting factors?
Something that doesn't let the population grow any farther
34
What is primary succession?
Where an area of vegetation and other organisms are lacking soil
35
What is secondary succession?
When the soil was good and then it and the land gets damaged
36
What is a theory?
What someone thinks is going to happen
37
What is a hypothesis?
An assumption or guess of what will happen
38
What is a prediction?
Declare or tell in advance
39
What is the scientific method?
A six step procedure for performing scientific investigation
40
What is a control group?
A group of organisms that are treated the same way for an experiment
41
What is an experimental group?
A group of organisms that receive the experimental treatment
42
What is an observation?
To analyze something
43
What is a cell?
The structural, functional, and biological unit of all organisms
44
What is a tissue?
An aggregate of cells in an organism that have similar structure and function
45
What is an organ?
A group of tissues that perform a specific function or group of functions
46
What is an experiment?
A procedure done for the purpose of gathering observations, data, or facts
47
What is development?
A series of changes in an organism
48
What is organization?
The act of arranging in a systematic way for use or action
49
What does multicellular mean?
Having or consisting of many cells
50
What does unicellular mean?
Having or consisting of only one cell
51
What does metabolism mean?
The process involving a set of chemical reactions that modifies a molecule into another for storage, or for immediate use in another reaction or as a by product
52
What is homeostasis?
The ability of the body or a cell to seek and maintain a condition of stability within its internal environment when dealing with external changes
53
What is evolution?
The change in genetic composition of a population over successive generations, which may be caused by natural selection, inbreeding, hybridization, or mutation.
54
What is adaption?
A modification according to changing circumstances
55
What's natural selection?
When organisms are adapted to their environment and go through things normally in the environment
56
What is reproduction?
The production of offspring