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Flashcards in Test 1 Deck (36):
1

Six steps of scientific method

Observation, question, hypothesis, experiment, conclusion, report results

2

Relationship between two variables

Correlations

3

Are hypothesis with broad application that are supported by MANY experiments

Theories

4

All organisms consist of one or more cells. The cell is the basic unit of life, and all cells arise from existing cells.

Cell theory

5

Change occurs in inherited traits of a population over generations.

Evolution

6

All substances consist of atoms

Atomic theory

7

Microorganisms cause many diseases.

Germ theory

8

What is biology

The scientific study of life

9

7 main characteristics of living organisms

Order, regulation, growth and development, energy utilization, response to environment, reproduction, evolution

10

Order

Living things are complex and organized; not random

11

Living things maintain relatively constant internal conditions (HOMEOSTASIS)

Regulation

12

Living things grow and develop.

Growth and development

13

Living things acquire and use material and energy; as a result of this they produce wast

Energy utilization

14

Living things respond to stimuli

Response to environment

15

Living things have baby’s

Reproduction

16

POPULATIONS of living things have the capacity to evolve; NOT a trait of an individual

Evolution

17

Scales of biological organization (10)

Biosphere, echo system, community, population, organism, organ system, organ, tissue, cell@ organelle, molecule and atom

18

The whole planet

Biosphere

19

Includes biotic and abiotic elements. Ex. Species conservation

Echo system

20

Is a pure substance that can not be broken down by chemical means into any other substance.

Element

21

96% of the human body is made up of these elements

C, H, O, and N

22

Is the smallest part of an element that retains the properties of that element.

Atom

23

(+) charge

Proton

24

(-) charge

Electron

25

(No charge)

Neutrons

26

Is an atom that either gained or lost electrons.
Either net negative or net positive.

Ion

27

Electrons that are donated

Ionic bonds

28

Share electrons

Covalent bonds

29

Polar covalent bonding can lead to the formation of?

Hydrogen bonds

30

Atoms joined by bonds.

Molecules

31

If a substance dissociates such that the concentration of H+ exceeds that of -OH ions that substance is an?

Acid

32

Is a substance that either adds -OH ions to a solution Or removes H+ ions from solutions.

Base

33

Water and life 4 important properties?

-hydrogen bonding
-high specific heat
-the solid state floats on the liquid state
-it’s a good solvent of polar molecules

34

How a tree gets water up to its branches

Cohesion

35

Molecules with affinity for water

Hydrophilic

36

Molecules that do not dissolve in water

Hydrophobic