Biodiversity & Endangered Species Flashcards

1
Q

Gene

A

Stretch of DNA that directs the
growth, development, and functioning of
an organism

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2
Q

Genetic Diversity

A

Different gene
combinations found within a single
population or species

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3
Q

Natural Selection

A

Those with more
favorable genetic traits survive better
than others

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4
Q

Domestication

A

The deliberate change
of a wild animal or plant species to
better meet the needs of humans

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5
Q

Life History

A

Characteristics of a species
and the rate at which young survive

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6
Q

K-Selected Species

A
  • Regulated by density dependent factors
  • Few offspring & parental intensive care
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7
Q

R-Selected Species

A
  • Rapid growth when the environment is
    favorable
  • Small and subject to catastrophic
    mortality from density independent
    factors
  • Lots of offspring, little parental
    investment
  • Live fast, die young!
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8
Q

Dependent Factors

A

Can only kill you if you’re around other members of your species (disease, predation, competition)

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9
Q

Independent Factors

A

Can kill you regardless if you’re around other members (natural disasters & pollutants)

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10
Q

What is the #1 threat to biodiversity?

A

Habitat Destruction

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11
Q

Anthropocene

A

Human activities have impacted the environment that have resulted in geological change

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12
Q

Invasive Species

A

When introduced to a
new environment, pose a serious threat
to native populations

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13
Q

Pest control

A

Introduces toxins that
harm species

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14
Q

Predators

A

Seen as threats to livestock
are killed without considering effect on
ecosystems

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15
Q

Endangered Species Act

A

Protects both domestic and foreign endangered
species

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16
Q

Lacey Act

A

Forbids the trading of
illegally harvested plants and animals