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Biology 181 > Chapter 1 > Flashcards

Chapter 1 Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

Biology

A

The Study of life

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2
Q

Unicellular Organism

A

An organism comprised of only one cell

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3
Q

Multicellular Organism

A

An organism comprised of 2 or more cells

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4
Q

DNA

A

deoxyribonucleic acid,
macromolecule that contains the instructions for structure and function of living things.
Gets passed onto offspring

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5
Q

Prokaryote

A

single celled organisms,

no membrane-bound organelles

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6
Q

Eukaryote

A

(single or multi-celled) with membrane-bound organelles and nucleus

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7
Q

Evolution

A

genetic traits change over time

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8
Q

Adaption

A

The ability to survive and reproduce in an environment

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9
Q

Species

A

group of similar individuals who can interbreed with each other

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10
Q

Population

A

group of individuals of the same species who live in an area

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11
Q

Independent variable

A

influences something (the variable tested/changed)

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12
Q

Dependent variable

A

influenced by something

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13
Q

Control Variables

A

variables that are held constant in all parts to the experiment

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14
Q

Control Group

A

a test group that has no changes (gives something to compare the experimental group to

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15
Q

Experimental Group

A

a test group where a variable is being changed/ tested

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16
Q

Observation

A

noting something

17
Q

Hypothesis

A

suggested explanation

18
Q

Prediction

A

observable result based on hypothesis

19
Q

Experiment

A

a test

20
Q

Variables

A

things that can be changed in the system studied

21
Q

List the basic characteristics of living things

A

have order, respond to stimuli, reproduce, grow/develop, regulate/homeostasis, process energy, populations adapt/evolve

22
Q

Order the hierarchy of living things from atoms to the biosphere

A

Atom, molecule, organelle, cell, tissue, organ, organism, population, community, ecosystem, biosphere

23
Q

Explain the difference between how scientists use the word theory and how it is used in general speech.

A

Scientific theory= an explanation for all the known info in a field that has NOT been disproven- atomic theory, cell theory, evolution/natural selection, chromosomal inheritance

24
Q

List and explain the three parts of Cell Theory

A
  1. all living organisms are composed of 1 or more cells
  2. cells basic organizational unit of living things
  3. Cells come from pre-existing cells
25
Q

Explain the Theory of Evolution by Natural Selection

A

a population can change characteristics due to individuals with traits that promote survival and reproduction passing on those genes. There must be variation of genes in the population, and selective pressure.

26
Q

List the three domains of living organisms

A

Bacteria, Archaea, Eukarya

Biology 181 (7 decks)

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