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Ap Bio > race not to fail this damn test > Flashcards

race not to fail this damn test Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

What is the synthetic theory of evolution?

A

Unified explanation of evolution
from Darwin and Mendel

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2
Q

Why is the Hardy Weinberg principle useful?

A

Identifies the change in
frequencies

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3
Q

What are pre-zygotic barriers

A

Mechanisms that prevent reproduction

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4
Q

What is homeostasis?

A

Process that maintains a stable internal environment

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5
Q

Hardy Weinberg principle

A

the genetic variation in a population will remain constant from one generation to the next in the absence of disturbing factors.

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6
Q

What is directional selection?

A

When phenotypes are favored at one extreme

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7
Q

What is sympatric speciation?

A

Forms new species in the same area

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8
Q

What is the importance of the fossil record?

A

to show that life evolved over
time

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9
Q

What were most likely the first land animals?

A

Arthropods

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10
Q

What is an example of a pre-zygotic barrier?

A

Behavioral isolation

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11
Q

What is the prebiotic soup hypothesis?

A

The ideas that organic molecules
formed in pools of water

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12
Q

What does the evolutionary species concept state?

A

Species have had to
diverge from other populations

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13
Q

Who was Jan Baptiste Lamarck

A

Came up with the theory of Inheritance of
acquired characteristics

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14
Q

What is not a principle of the Hardy Weinberg concept?

A

Artificial selection

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15
Q

What process is responsible for the creation of new species

A

Natural
Selection

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16
Q

What is hybrid inviability?

A

Mating of embyros that fail to develop

17
Q

What is genetic equilibrium?

A

Frequencies do not change over time

18
Q

What are homologus structures?

A

Similar in structure and different in
function

19
Q

What is not an adaption to bipedalism in early hominids?

A

Curve in the spine

20
Q

What is the founder effect?

A

It is an overall shrinking of the available genepool
usually due to a small part of the population breaking off from a larger
population. This can cause very little genetic diversity in a population

21
Q

What is stabilizing selection?

A

type of natural selection in which genetic
diversity decreases and the population mean stabilizes on a particular trait
value.

22
Q

What is punctuated equilibrium?

A

Model to predict the abrupt appearance of
a new species. Be sure to look at the images

23
Q

What is convergent evolution? Give examples.

A

process whereby organisms
not closely related, independently evolve similar traits as a result of having
to adapt to similar environments or ecological niches. Example: Bird wings,
insect wings

24
Q

What is gene flow?

A

Breeding individuals that move alleles between
populations

25
Q

What is sexual selection?

A

Selecting mates based on appearance

26
Q

What is the biological species concept?

A

Populations whose members do not
interbreed in nature

27
Q

What is a hominid?

A

a primate of a family ( Hominidae ) that includes humans
and their fossil ancestors

28
Q

What are preadaptations?

A

New features on organisms

29
Q

What is a genetic drift?

A

Random changes in a population

30
Q

What is neutral variations?

A

Conditions that do not alter the ability of
organisms to survive

31
Q

In breeding Depression is due to____

A

increased homozygosity

32
Q

What is allopatric speciation?

A

he most common form of speciation, occurs
when populations of a species become geographically isolated.

33
Q

What process prohibits interbreeding between two different species is
called?

A

Reproductive isolating mechanisms

34
Q

What is a genetic bottleneck?

A

is an event that drastically reduces the size of a
population.

Ap Bio (5 decks)

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