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Flashcards in Test 1 Deck (36)
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1
Q

Six steps of scientific method

A

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

2
Q

Relationship between two variables

A

Correlations

3
Q

Are hypothesis with broad application that are supported by MANY experiments

A

Theories

4
Q

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

A

Cell theory

5
Q

Change occurs in inherited traits of a population over generations.

A

Evolution

6
Q

All substances consist of atoms

A

Atomic theory

7
Q

Microorganisms cause many diseases.

A

Germ theory

8
Q

What is biology

A

The scientific study of life

9
Q

7 main characteristics of living organisms

A

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

10
Q

Order

A

Living things are complex and organized; not random

11
Q

Living things maintain relatively constant internal conditions (HOMEOSTASIS)

A

Regulation

12
Q

Living things grow and develop.

A

Growth and development

13
Q

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

A

Energy utilization

14
Q

Living things respond to stimuli

A

Response to environment

15
Q

Living things have baby’s

A

Reproduction

16
Q

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

A

Evolution

17
Q

Scales of biological organization (10)

A

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

18
Q

The whole planet

A

Biosphere

19
Q

Includes biotic and abiotic elements. Ex. Species conservation

A

Echo system

20
Q

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

A

Element

21
Q

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

A

C, H, O, and N

22
Q

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

A

Atom

23
Q

(+) charge

A

Proton

24
Q

(-) charge

A

Electron

25
Q

(No charge)

A

Neutrons

26
Q

Is an atom that either gained or lost electrons.

Either net negative or net positive.

A

Ion

27
Q

Electrons that are donated

A

Ionic bonds

28
Q

Share electrons

A

Covalent bonds

29
Q

Polar covalent bonding can lead to the formation of?

A

Hydrogen bonds

30
Q

Atoms joined by bonds.

A

Molecules

31
Q

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

A

Acid

32
Q

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

A

Base

33
Q

Water and life 4 important properties?

A
  • hydrogen bonding
  • high specific heat
  • the solid state floats on the liquid state
  • it’s a good solvent of polar molecules
34
Q

How a tree gets water up to its branches

A

Cohesion

35
Q

Molecules with affinity for water

A

Hydrophilic

36
Q

Molecules that do not dissolve in water

A

Hydrophobic