what is life? Flashcards

1
Q

the science of “life”/study of living things

A

biology

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1
Q

a living thing

A

organism

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2
Q

get energy by consuming other organisms

A

heterotroph

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3
Q

use energy from sunlight or chemicals to make their own food

A

Autotroph

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4
Q

“living things”

A

Biotic factors

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5
Q

“non living things”

A

Abiotic factors

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6
Q

the smallest functional and structural unit of all living things

A

cell

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7
Q

signal to which an organism responds

A

stimulus/stimuli

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8
Q

cell work to keep conditions inside the cell constant and in balance

A

Homeostasis

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9
Q

cells that do have a nucleus and membrane bound

A

Eukaryote/eukaryotic cell

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10
Q

non living infections agent

A

Virus

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11
Q

Characteristics of life

A

1.made of cells
2.reproduce
3.share a universal genetic code
4.take in minerals and use energy
5.respond to their environment
6.grow and develop
7.change over time

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12
Q

what is the difference in unicellular and multicellular organisms?

A

unicellular are made up of only one cell to function, while multicellular uses multiple cells to function.

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13
Q

what is the difference in sexual and asexual reproduction?

A

sexual needs 2 parents, asexual only needs 1

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14
Q

why is evolution of species important

A

it is the process through which organisms adapt and change over time in response to their environment

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15
Q

how do multicellular organisms grow bigger

A

they grow individually and then divide

16
Q

why can cells not just grow larger and larger with no limit

A

if they get to big they won’t be able to get nutrients

17
Q

what things do all cells have in common

A

cell membrane, cytoplasm, organelles, DNA

18
Q

what are the 2(3) parts to all viruses

A

DNA or RNA, capsid, protein coat

19
Q

how do viruses and cells differ

A

one has organelles and cytoplasm and one dont

20
Q

are viruses living

A

no they do not meet all the characteristics of life