1
APES BIODIVERSITY ZORNOW MPHS EXAM LATEST VERSION -
2025/2026- 100+ QUESTIONS AND VERIFIED ANSWERS ALL
THE BEST
genetic biodiversity
the total number of genetic characteristics in the genetic makeup of a species
DARWIN FOUR POSTULATES (CRITERIA)
1. Variation exists among individual organisms that make up a population (i.e., size
and shape)
2. some of the trait differences are heritable and passed on to offspring
3. all individuals do not survive and reproduce
4. individuals with certain traits produce more offspring
- if all is true, natural selection is occurring
differential selection
the differential survival and reproduction of individuals due to differences in
phenotype.
Darwin
English natural scientist who formulated a theory of evolution by natural selection
(1809-1882)
survival of the fittest
A natural process resulting in the evolution of organisms best adapted to the
environment.
stabilizing selection
Natural selection that favors intermediate variants by acting against extreme
phenotypes
, 2
diversyfying selection
selection that favors two or more distinct phenotypes
bottleneck event
a type of genetic drift: sudden decrease in the gene pool due to a short lived
event (ex. over hunting, disease, storm event)
biodversity will be higher if
lots of potential ecological niches, near the margins of adjacent communities, little
geographical isoloation, no species dominance, little habitat stress, long geologic
history, little domestication
ecological niches
the sum of a species' use of the biotic and abiotic resources in its environment
Ecotone
The transition from one type of habitat or ecosystem to another, such as the
transition from a forest to a grassland.
edge effect
the condition in which, at ecosystem boundaries, there is greater species diversity
and biological density than there is in the heart of ecological communities.
wildlife corridors
strips of protected land linking larger areas. They allow animals to move freely and
safely between habitats that would otherwise be isolated by human activities.
island biogeography
The study of rates of colonization and extinction of species on islands or other
isolated areas based on size, shape, and distance from other inhabited regions
factors that increase biodiversity
1. physically diverse habitat
APES BIODIVERSITY ZORNOW MPHS EXAM LATEST VERSION -
2025/2026- 100+ QUESTIONS AND VERIFIED ANSWERS ALL
THE BEST
genetic biodiversity
the total number of genetic characteristics in the genetic makeup of a species
DARWIN FOUR POSTULATES (CRITERIA)
1. Variation exists among individual organisms that make up a population (i.e., size
and shape)
2. some of the trait differences are heritable and passed on to offspring
3. all individuals do not survive and reproduce
4. individuals with certain traits produce more offspring
- if all is true, natural selection is occurring
differential selection
the differential survival and reproduction of individuals due to differences in
phenotype.
Darwin
English natural scientist who formulated a theory of evolution by natural selection
(1809-1882)
survival of the fittest
A natural process resulting in the evolution of organisms best adapted to the
environment.
stabilizing selection
Natural selection that favors intermediate variants by acting against extreme
phenotypes
, 2
diversyfying selection
selection that favors two or more distinct phenotypes
bottleneck event
a type of genetic drift: sudden decrease in the gene pool due to a short lived
event (ex. over hunting, disease, storm event)
biodversity will be higher if
lots of potential ecological niches, near the margins of adjacent communities, little
geographical isoloation, no species dominance, little habitat stress, long geologic
history, little domestication
ecological niches
the sum of a species' use of the biotic and abiotic resources in its environment
Ecotone
The transition from one type of habitat or ecosystem to another, such as the
transition from a forest to a grassland.
edge effect
the condition in which, at ecosystem boundaries, there is greater species diversity
and biological density than there is in the heart of ecological communities.
wildlife corridors
strips of protected land linking larger areas. They allow animals to move freely and
safely between habitats that would otherwise be isolated by human activities.
island biogeography
The study of rates of colonization and extinction of species on islands or other
isolated areas based on size, shape, and distance from other inhabited regions
factors that increase biodiversity
1. physically diverse habitat
