Evidence of Evolution (original) Flashcards

(49 cards)

1
Q

A change in an organism that makes it better suited to its environment.

A

Adaptation

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2
Q

The process through which species change over time through adaptations.

A

Evolution

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3
Q

The ability of bacteria to survive and grow in the presence of antibiotics.

A

Antibiotic resistance

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4
Q

The ability of pests to survive exposure to pesticides that once killed them.

A

Pesticide resistance

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5
Q

A species of moth that changed color due to industrial pollution, illustrating natural selection.

A

Peppered moth

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6
Q

The process where organisms better adapted to their environment tend to survive and produce more offspring.

A

Natural selection

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7
Q

The introduction of harmful substances or products into the environment.

A

Pollution

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8
Q

What are some types of evidence for evolution?

A

fossils,
anatomy,
embryology,
and biochemistry.

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9
Q

What is a fossil?

A

preserved remains of an ancient organism.

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10
Q

How can the age of a fossil be determined?

A

by relative dating and radioactive dating.

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11
Q

What is relative dating?

A

uses the layers of the Earth to approximate the age of a fossil.

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12
Q

What is radioactive dating?

A

uses Carbon-14 dating to provide the exact age of a fossil.

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13
Q

Where are the oldest fossils typically found?

A

at the bottom of the layers

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14
Q

What can be learned by examining the layers of fossils?

A

we can see how an organism has changed over time.

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15
Q

Which dating method provides an exact age for fossils?

A

Radioactive dating

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16
Q

Why is the arrangement of fossils in layers important?

A

it helps scientists understand the chronological order of organism changes over time.

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17
Q

what do fossils provide us evidence about?

A

Anatomy
an organisms habitat
what an organism eats

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18
Q

the bone and organ structure of an organism

A

Anatomy

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19
Q

structure that do not have a common evolutionary orgion
not similar in bone arrangement but similar in function
different ancestors

A

analogous

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20
Q

differnet function
similar structure

21
Q

Homologous and analogous structures help show if organisms are similar or different

A

evolutionary origin

22
Q

structure in present day organism that no longer has a purpose, but was probably useful to ancestors

A

Vestigial structure

23
Q

structure with a common evolutionary orgin
same bone arrangment same function or both
organisms share a common ancestor

A

Homologous structure

24
Q

examples of vestigial structures in whales

A

pelvis and femur

25
vestigial structures in humans
Appendix Tail bone Goosebumps
26
similar function different structure
analogous structure
27
earliest stage of growth and development in an animal
Embryos
28
similar embryos means they shared a _____ _______
common ancestor
29
the three types of natural selection
stabilizing directional disruptive
30
using biological molecules to see evolutionary relationships
biochemistry
31
favors average individual reduces variation in a population of organisms
stabilizing selection
32
similar patterns in ____ and __ ______
Proteins Amino Acids
33
what type of selection is medium colored shells are favored and dark shells are reduced?
stabalizing
34
show evolutionary relationships based on DNA similarities
Phylogenetic trees
35
favors one of the extreme vartations
directional selection
36
the evolution of a new species
speciation
37
occurs when 2 populations are separated by geographic barriers such as rivers, mountains, or bodies of water, the split population become 2 separate species
geographic isolation
38
what type of selection is dark shells survive?
directional
39
two similar populations of organisms can no longer interbreed
speciation
40
a pattern of evolution where 1 species evolves into different species with similar traits share a common ancestor
divergent evoliution
41
favors both extremes of a variation 2 new species evolve
disruptive selection
42
1 species evolves into many different species because of different environments
adaptive radiation
43
what type of selection is light and dark shells survive
disruptive
44
________ ___________ show divergent evolution
homologous structure
45
a pattern of evolution where unrelated otganisms evolve into forms that resemble each other because of similar life styles no common ancestor
convergent evolution
46
species evolve through a slow, steady change in adaptations
gradualism
47
________ _______ show convergent evolution
analogous structures
48
species evvole quickly, in rapid bursts, and then there are bng periods with no change
Punctuated Equilibrium
49
a group of similar organisms that can breed and produce fertile offspring
species