PCA – LAW AND REGULATION LATEST UPDATED ACTUAL
EXAM2026 WITH COMPLETE DETAILED QUESTIONS AND 100%
VERIFIED CORRECT ANSWERS ALREADY GRADED A+
Natural Selection
The process in which allows individuals to pass certain genetic traits to their progeny
Ecological Niche
Refers to all components of the habitat with which the individual or population interacts with
Habitat
includes both he biological and physical environment that surround an individual population or
population
Population Density
number of individual in a defined area
Ecotype
A locally adapted population of a species that allows it to live in that specific habitat
Species Diversity
A measure of number of species in an area and their relative abundance
,What is a population
A population is a group of the same species that occupies an area
What is a community of organisms
Consists of of all the populations of plants, animals, and microorganisms that share the same habitat and
indirectly or directly interact with one another
What are the impacts of a population regulation
Include density dependent and independent factors that affect the population of an organism.
How does age distribution impact growth rate of a population
impacts the growth rate of a population because it can indicate if a population is expanding, declining, or
remaining stable
What is density independent limiting factors
it affects the population regardless of density and includes floods, fires, drought, or any other
unpredictable environmental events
What is density dependent limiting factor
it has different effects on the population of a species based on its population size, for example
competition, predation, or resource abundance
What are the three types of population dispersal patterns
Immigration: movement into a population
,Emigration: movement out of a population
Migration: frequent movement into or out off a population
How does a community and the abiotic (nonliving) environment function together as an ecological
system or ecosystem
Abiotic environmental factors tend to indicate the number of organisms that can survive and reproduce
How does energy flow through an ecosystem
Through an ecosystem by starting with plants absorbing light energy and converting it to chemical
energy, that energy is used by the plant for basic functions and other organisms use it absorb it and
convert it to other types of energy for other functions. finally the last of the it is releases back into the
environment via respiration.
What is the role of photosynthesis in an ecosystem
Primary producers absorb sunlight and use photosynthesis to create chemical energy
What is a biogeochemical cycle in an ecosystem
plants take up nutrients from the soil and organize it them into biologically useful components
What are examples of abiotic components
Minerals, soil, water, temperature, climate, light, and grasses
What is a food chain
A flow of energy within an ecosystem which follows a certain pattern
, What are the common trophic levels in an ecosystem
Autotroph (green plants)--> primary consumer (herbivores) --> carnivores (herbivore eaters)-->
carnivores that eat other carnivores--> decomposers
Describe a food web in an ecosystem
A food web is more complex version of a food chain in which many organism may feed on a single
organism creating a very complex version of energy transfer
Agroecosystem
Predominantly monoculture system in which the age and genotype of the planted crop are relatively
uniform and species diversity
Managed ecosystem
an ecosystem managed by humans (wild life preservations)/ range lands/Forrest systems)
What are limiting factors
Factors in short supply that can manipulated to affect the growth and development of an organism
why are limiting factors important to pest management
pests can create limited factors for crops, such as a young crop needing a certain amount of sunlight thus
shading from weeds creates a limiting factor
EXAM2026 WITH COMPLETE DETAILED QUESTIONS AND 100%
VERIFIED CORRECT ANSWERS ALREADY GRADED A+
Natural Selection
The process in which allows individuals to pass certain genetic traits to their progeny
Ecological Niche
Refers to all components of the habitat with which the individual or population interacts with
Habitat
includes both he biological and physical environment that surround an individual population or
population
Population Density
number of individual in a defined area
Ecotype
A locally adapted population of a species that allows it to live in that specific habitat
Species Diversity
A measure of number of species in an area and their relative abundance
,What is a population
A population is a group of the same species that occupies an area
What is a community of organisms
Consists of of all the populations of plants, animals, and microorganisms that share the same habitat and
indirectly or directly interact with one another
What are the impacts of a population regulation
Include density dependent and independent factors that affect the population of an organism.
How does age distribution impact growth rate of a population
impacts the growth rate of a population because it can indicate if a population is expanding, declining, or
remaining stable
What is density independent limiting factors
it affects the population regardless of density and includes floods, fires, drought, or any other
unpredictable environmental events
What is density dependent limiting factor
it has different effects on the population of a species based on its population size, for example
competition, predation, or resource abundance
What are the three types of population dispersal patterns
Immigration: movement into a population
,Emigration: movement out of a population
Migration: frequent movement into or out off a population
How does a community and the abiotic (nonliving) environment function together as an ecological
system or ecosystem
Abiotic environmental factors tend to indicate the number of organisms that can survive and reproduce
How does energy flow through an ecosystem
Through an ecosystem by starting with plants absorbing light energy and converting it to chemical
energy, that energy is used by the plant for basic functions and other organisms use it absorb it and
convert it to other types of energy for other functions. finally the last of the it is releases back into the
environment via respiration.
What is the role of photosynthesis in an ecosystem
Primary producers absorb sunlight and use photosynthesis to create chemical energy
What is a biogeochemical cycle in an ecosystem
plants take up nutrients from the soil and organize it them into biologically useful components
What are examples of abiotic components
Minerals, soil, water, temperature, climate, light, and grasses
What is a food chain
A flow of energy within an ecosystem which follows a certain pattern
, What are the common trophic levels in an ecosystem
Autotroph (green plants)--> primary consumer (herbivores) --> carnivores (herbivore eaters)-->
carnivores that eat other carnivores--> decomposers
Describe a food web in an ecosystem
A food web is more complex version of a food chain in which many organism may feed on a single
organism creating a very complex version of energy transfer
Agroecosystem
Predominantly monoculture system in which the age and genotype of the planted crop are relatively
uniform and species diversity
Managed ecosystem
an ecosystem managed by humans (wild life preservations)/ range lands/Forrest systems)
What are limiting factors
Factors in short supply that can manipulated to affect the growth and development of an organism
why are limiting factors important to pest management
pests can create limited factors for crops, such as a young crop needing a certain amount of sunlight thus
shading from weeds creates a limiting factor
