Paciulli FINAL BIO 181 NCSU
2026 Exam Questions with 100%
Correct Answers | Latest Update
To the west of Wallace's Line in Southeast Asia are organisms related to
Asiatic species. To the east of the line, there is a mixture of species of
Asian and Australian origin. This is an example of: - 🧠ANSWER
✔✔biogeography
Two members of the initial Amish migration to Pennsylvania in 1744 shared
the recessive allele for Ellis-van Creveld syndrome, which results in a long
narrow chest and shortening of the limbs. More Amish people have these
,traits than the surrounding non-Amish population. This is an example of... -
🧠ANSWER ✔✔the founder effect
Evolutionary changes within a species are most accurately referred to as: -
🧠ANSWER ✔✔microevolution
Our ancestors had much bigger jaws than we do, which helped them chew
a tough diet, tear apart meat, etc. Their teeth also wore down quickly.
Wisdom teeth (third molars) grew later in life, and helped our ancestors
continue to eat. Today, ~35% of people are born without wisdom teeth.
This is an example of: - 🧠ANSWER ✔✔evolution
The idea that most speciation is slow and uniforms is known as: -
🧠ANSWER ✔✔gradualism
Drongo birds live in central Africa. One population is found in evergreen
rainy forest areas, while another population is found in open grassland
areas. The two populations live in two different habitats 150 feet apart, and
do not interbreed. The _____ Species Concept best explains this
phenomenon. - 🧠ANSWER ✔✔ecological
Selection pressure throughout earth's history has been most often exerted
by... - 🧠ANSWER ✔✔the environment
,The first step of the scientific method is _____ . - 🧠ANSWER
✔✔observation
People who are wealthy, and only marry people who are wealthy who have
blond hair and blue eyes are practicing a form of _____ mating. -
🧠ANSWER ✔✔assortative
Non-poisonous king snakes mimicking poisonous coral snakes is likely due
to _____ - 🧠ANSWER ✔✔biogeography
All wasps have stingers. This thing in my hand is a wasp. Therefore, this
wasp can probably sting me! This is an example of _____ reasoning. -
🧠ANSWER ✔✔deductive
We said that each level of life ... - 🧠ANSWER ✔✔has emergent properties
The only source of new genetic variation is / are _____ . - 🧠ANSWER
✔✔mutations
Although Jean-Baptiste Lamarck's work was important in the development
of evolutionary thought, he was wrong because he believed that
characteristics were _____. - 🧠ANSWER ✔✔aquired
3
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2026. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
, The large antlers of moose help them fight other males, to gain access to
females. - 🧠ANSWER ✔✔intrasexual selection
Smaller teeth in all modern humans as our diets became less coarse. -
🧠ANSWER ✔✔directional selection
Two distinctly different beak sizes occur in a single population of black-
bellied seed crackers (a finch species that lives in Cameroon, West Africa).
The small-billed individuals feed mainly on soft seeds, while the large-billed
individuals feed mainly on hard seeds. - 🧠ANSWER ✔✔disruptive selection
The smallest unit capable of carrying out life functions is a / the -
🧠ANSWER ✔✔the cell
Blue-footed boobies (a species of bird) select mates after an elaborate
courtship display. They will not mate with other boobies.
Indicate whether this an example of a prezygotic or postzygotic isolating
mechanism, by writing pre or post. - 🧠ANSWER ✔✔pre
2026 Exam Questions with 100%
Correct Answers | Latest Update
To the west of Wallace's Line in Southeast Asia are organisms related to
Asiatic species. To the east of the line, there is a mixture of species of
Asian and Australian origin. This is an example of: - 🧠ANSWER
✔✔biogeography
Two members of the initial Amish migration to Pennsylvania in 1744 shared
the recessive allele for Ellis-van Creveld syndrome, which results in a long
narrow chest and shortening of the limbs. More Amish people have these
,traits than the surrounding non-Amish population. This is an example of... -
🧠ANSWER ✔✔the founder effect
Evolutionary changes within a species are most accurately referred to as: -
🧠ANSWER ✔✔microevolution
Our ancestors had much bigger jaws than we do, which helped them chew
a tough diet, tear apart meat, etc. Their teeth also wore down quickly.
Wisdom teeth (third molars) grew later in life, and helped our ancestors
continue to eat. Today, ~35% of people are born without wisdom teeth.
This is an example of: - 🧠ANSWER ✔✔evolution
The idea that most speciation is slow and uniforms is known as: -
🧠ANSWER ✔✔gradualism
Drongo birds live in central Africa. One population is found in evergreen
rainy forest areas, while another population is found in open grassland
areas. The two populations live in two different habitats 150 feet apart, and
do not interbreed. The _____ Species Concept best explains this
phenomenon. - 🧠ANSWER ✔✔ecological
Selection pressure throughout earth's history has been most often exerted
by... - 🧠ANSWER ✔✔the environment
,The first step of the scientific method is _____ . - 🧠ANSWER
✔✔observation
People who are wealthy, and only marry people who are wealthy who have
blond hair and blue eyes are practicing a form of _____ mating. -
🧠ANSWER ✔✔assortative
Non-poisonous king snakes mimicking poisonous coral snakes is likely due
to _____ - 🧠ANSWER ✔✔biogeography
All wasps have stingers. This thing in my hand is a wasp. Therefore, this
wasp can probably sting me! This is an example of _____ reasoning. -
🧠ANSWER ✔✔deductive
We said that each level of life ... - 🧠ANSWER ✔✔has emergent properties
The only source of new genetic variation is / are _____ . - 🧠ANSWER
✔✔mutations
Although Jean-Baptiste Lamarck's work was important in the development
of evolutionary thought, he was wrong because he believed that
characteristics were _____. - 🧠ANSWER ✔✔aquired
3
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2026. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
, The large antlers of moose help them fight other males, to gain access to
females. - 🧠ANSWER ✔✔intrasexual selection
Smaller teeth in all modern humans as our diets became less coarse. -
🧠ANSWER ✔✔directional selection
Two distinctly different beak sizes occur in a single population of black-
bellied seed crackers (a finch species that lives in Cameroon, West Africa).
The small-billed individuals feed mainly on soft seeds, while the large-billed
individuals feed mainly on hard seeds. - 🧠ANSWER ✔✔disruptive selection
The smallest unit capable of carrying out life functions is a / the -
🧠ANSWER ✔✔the cell
Blue-footed boobies (a species of bird) select mates after an elaborate
courtship display. They will not mate with other boobies.
Indicate whether this an example of a prezygotic or postzygotic isolating
mechanism, by writing pre or post. - 🧠ANSWER ✔✔pre
