NEWEST WGU C190 INTRO TO BIOLOGY PRE ASSESSMENT
ACTUAL EXAM 2025/2026 COMPLETE 70 REAL QUESTIONS
WITH WELL ELABORATED ANSWERS (100% CORRECT
VERIFIED SOLUTIONS) A NEW UPDATED VERSION
|GUARANTEED PASS A+ (BRAND NEW!) WGU C190 INTRO
TO BIOLOGY PA EXAM
Which item would be classified as biotic?
-light
-wind
-temperature
-fungus
Answer- fungus
Which item is an atom?
-carbon dioxide
-nitrogen
-sucrose
-methane
,Answer- nitrogen
Largemouth bass have recently been introduced into
ponds that previously did not contain any large, predatory
fish.
Which adaptation would help the existing population of
small, prey species of fish avoid predation from the
largemouth bass?
-fins with smaller surface areas
-faster average swim speed
-more noticeable body coloration
-more time actively foraging for food each day
Answer- faster average swim speed
Western spadefoot toads breed and deposit their fertilized
eggs in small, often short-lived ponds. The tadpoles grow
in the ponds for a period of time before undergoing a
,metamorphosis into an adult frog. One unusual
characteristic of spadefoot tadpoles is the ability to
change body form during development. Normally most
tadpoles are herbivorous and feed on plant material.
However, when conditions in the ponds suggest they are
beginning to dry up (e.g., an increase in water temperature
or concentration of organic waste), a small percentage of
individuals in the population undergo a dramatic change
in body form and habit and begin to eat their competitors.
This ability is considered to be advantageous as it both
reduces the number of competitors in the pond and speeds
up the rate of development of the transformed tadpoles.
If global climate change continues (as predicted) to
increase the average temperature of habitats around the
world, how would populations of spadefoot toads likely
evolve in response to an increase in pond temperatures?
-Spadefoot toads would likely evolve to lay fewer eggs to
try and offset the increase in the mortality rate.
-Spadefoot toads would likely evolve to increase the
period of tadpole development.
-Spadefoot toads would likely evolve to have a higher
percentage of tadpoles be herbivorous.
, -Spadefoot toads would likely evolve to have a higher
percentage of toads become carnivorous.
Answer- Spadefoot toads would likely evolve to have a
higher percentage of toads become carnivorous.
Male peacocks compete with one another to mate female
peacocks. Males with more colorful tail feathers attract
female mates at a higher rate than those without.
Therefore, male peacocks have colorful tail feathers,
whereas female peacocks do not.
What is this an example of?
-sexual selection
-artificial selection
-gene flow
-genetic drift
Answer- sexual selection
ACTUAL EXAM 2025/2026 COMPLETE 70 REAL QUESTIONS
WITH WELL ELABORATED ANSWERS (100% CORRECT
VERIFIED SOLUTIONS) A NEW UPDATED VERSION
|GUARANTEED PASS A+ (BRAND NEW!) WGU C190 INTRO
TO BIOLOGY PA EXAM
Which item would be classified as biotic?
-light
-wind
-temperature
-fungus
Answer- fungus
Which item is an atom?
-carbon dioxide
-nitrogen
-sucrose
-methane
,Answer- nitrogen
Largemouth bass have recently been introduced into
ponds that previously did not contain any large, predatory
fish.
Which adaptation would help the existing population of
small, prey species of fish avoid predation from the
largemouth bass?
-fins with smaller surface areas
-faster average swim speed
-more noticeable body coloration
-more time actively foraging for food each day
Answer- faster average swim speed
Western spadefoot toads breed and deposit their fertilized
eggs in small, often short-lived ponds. The tadpoles grow
in the ponds for a period of time before undergoing a
,metamorphosis into an adult frog. One unusual
characteristic of spadefoot tadpoles is the ability to
change body form during development. Normally most
tadpoles are herbivorous and feed on plant material.
However, when conditions in the ponds suggest they are
beginning to dry up (e.g., an increase in water temperature
or concentration of organic waste), a small percentage of
individuals in the population undergo a dramatic change
in body form and habit and begin to eat their competitors.
This ability is considered to be advantageous as it both
reduces the number of competitors in the pond and speeds
up the rate of development of the transformed tadpoles.
If global climate change continues (as predicted) to
increase the average temperature of habitats around the
world, how would populations of spadefoot toads likely
evolve in response to an increase in pond temperatures?
-Spadefoot toads would likely evolve to lay fewer eggs to
try and offset the increase in the mortality rate.
-Spadefoot toads would likely evolve to increase the
period of tadpole development.
-Spadefoot toads would likely evolve to have a higher
percentage of tadpoles be herbivorous.
, -Spadefoot toads would likely evolve to have a higher
percentage of toads become carnivorous.
Answer- Spadefoot toads would likely evolve to have a
higher percentage of toads become carnivorous.
Male peacocks compete with one another to mate female
peacocks. Males with more colorful tail feathers attract
female mates at a higher rate than those without.
Therefore, male peacocks have colorful tail feathers,
whereas female peacocks do not.
What is this an example of?
-sexual selection
-artificial selection
-gene flow
-genetic drift
Answer- sexual selection
