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Biology Flashcards

(71 cards)

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0
Q

What type of research is research is based on numerical measurements?

A

Quantitative

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1
Q

Define experiment

A

Testing a hypothesis

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2
Q

Scientific explanation of facts tested over and over is called ________?

A

Scientific theory

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3
Q

Information gathered from an experiment is called _______?

A

Data

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4
Q

Define ethics-

A

A set of moral principles and values held by humans that are right or wrong

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5
Q

What is they key to studying biology?

A

Learn about life around you

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6
Q

Living organisms change during their lives through __________ and ___________?

A

Growth and development

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7
Q

Living organisms ___________ to produce more?

A

Reproduce

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8
Q

What is the reaction to a stimulus called ________?

A

Response to a stimulus

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9
Q

Define evolution-

A

Changes to a species over time

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10
Q

Biologists use ________ to discover problems in the world around them?

A

Observation

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11
Q

Define hypothesis-

A

Educated guess

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12
Q

What system does scientist use to report measurements?

A

System international (SI)

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13
Q

SI unit:

Volume

A

Liters

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14
Q

SI unit:

Distance

A

Meters

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15
Q

SI unit:

Weight

A

Grams

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16
Q

Cat and mouse have a _________ type of relationship.

A

Predator and prey

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17
Q

What happens to matter and energy as it moves from producers to carnivores.

A

Decreases

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18
Q

How much energy is lost by the time it reaches the top consumer?

A

10% each level

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19
Q

Define ecosystem

A

Interactions between biotic and abiotic factors

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20
Q

The _________ of cougars is that of a predator feeding on weak animals.

A

Niche

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21
Q

Organisms living in saltwater and shallow tidal pools are the _________ of the organism.

A

Habitat

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22
Q

How does carbon dioxide enter the biotic parts of the biosphere?

A

Photosynthesis, combustion, and forest fires

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23
Q

How is nitrogen released into the abiotic parts of the biosphere?

A

Death and decay caused by bacteria

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24
Define transpiration-
Process by which water evaporates from the surface of plants
25
What organism forms the Base in an aquatic biome?
(Phyto) plankton
26
__________ species appear in an area undergoing a succession.
Pioneer
27
The __________ biome has a decomposition that occurs at a first rte form humus to form.
Tropical rainforest
28
List causes of secondary succession.
Fires, disasters, and human activity
29
List abiotic factors that affect the tolerance range of organisms in a lake.
Temperature, water, or light
30
Define estuary
Where fresh and salt water meet
31
What type of trees dominate the taiga biome?
Coniferous
32
What type of plant is common in the desert biome?
Cacti
33
Define secondary succession-
Uncut land or a meadow becomes a forest
34
Define succession
Replaces one community after another
35
An arid region with little or no plants is called a _________.
Desert
36
Define plankton
Microscopic organisms
37
Frozen layer of soil is called _______?
Permafrost
38
Which zone of the ocean is shallow enough for sunlight to penetrate called?
Photic
39
Define intertidal zone
Shoreline affected by tides
40
Colonization of a new site by communities of organisms is what type of succession?
Primary
41
Deciduous trees dominate which biome?
Temperate forest
42
A stable result of a succession is called a _____________ community.
Climax
43
____________ is a major limiting factor of the tundra biome.
Latitude/temperature
44
The great northern coniferous forest forms the __________ biome.
Taiga
45
What biome would you find herding animals?
Grassland
46
What type of growth would a bacteria population have if it doubles is size?
Exponential
47
What type of curve would a population have if it grows without limits to its size?
J-curve
48
List demographers collect and study data about.
Population size, density, and distribution
49
What type of factors effect increase as the size of the population increases?
Density-dependent
50
Part of a population expressed in terms of reproduction years is called ___________?
Age-structure
51
Define carrying capacity
Number of organisms environment can hold
52
What does not affect density-independent factors?
Population density
53
What shape does a population have when it reaches its carrying capacity?
S-shaped
54
Land tortoises and sequoias use what type of growth strategy?
K-strategy/slow growth/s-curve
55
What type of reproductive strategy do bacteria use?
R-strategy/slow-growth/J-curve
56
What type of age-structure does a country have if its not growing?
Zero-population growth rate and same for all age groups
57
What is destroyed by CFC's in the atmosphere?
Ozone
58
What does reintroduction programs seek to establish?
Species in an area where they once lived
59
List causes of acid precipitation.
Burning nitrogen oxide and sulfur dioxide
60
List some extinct species
Passenger pigeons, dinosaurs, mammoth
61
What % of the worlds land is designated as a national park?
6-7%
62
What is the major focus of conservation biology?
Protecting species and biodiversity from extinction
63
What is the biggest threat to biodiversity?
Habitat loss
64
Define exotic species-
Bringing a species where it's never lived before
65
What are roads cut across natural areas is called ____________?
Habitat fragmentation and corridors
66
What type of pesticide caused the American bald eagles to become soft?
DDT
67
What biome has more biodiversity?
Tropical Rainforest
68
What is the major concern for conservation biologists?
Protecting biodiversity
69
Who works with the local government to develop ways to protect wildlife habitats?
Conservation biologists/ rangers
70
What is edge effect?
Different environmental conditions that occur along the boundaries of an ecosystem

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