Search Results for: populations
Genetic diversity
Genetic Diversity Definition Each species is composed of individuals with their own set of genes. A gene is the inheritance... Read More
Genetic drift
Genetic Drift Definition What is genetic drift in simple terms? The simple definition of genetic drift ( also referred to... Read More
Allopatric speciation
We can define speciation as a process by which the novel genetically independent group of organisms are formed through the... Read More
Population
Living organisms typically prefer to live, grow, and survive in groups. Except for some species that prefer solitude - both... Read More
Sympatric speciation
Speciation is a process of evolution through which two different existing populations evolve and a distinct species form. It... Read More
Density dependent factor
Density-dependent factors are the limiting factors of an ecosystem that regulate population growth in a density-dependent... Read More
Density dependent limiting factor
What Is A Density-Dependent Limiting Factor? Density-dependent limiting factors are limiting factors, which, depending on... Read More
Population Growth and Survivorship
By: Maria Victoria Gonzaga Previously, we learned about biodiversity and endemism. Now, let's look at the... Read More
Disruptive Selection
An evolutionary process known as disruptive selection (or disruptive natural selection) causes a population to become... Read More
Demographic transition
The demographic transition model is a theoretical framework that explains the historical shift in population dynamics as a... Read More
Darwinian fitness
Darwinian Fitness Definition Darwinian fitness refers to the measure of an individual organism's or genotype's reproductive... Read More
Inbreeding
Inbreeding is a type of breeding or mating where closely related individuals with a common ancestor produce progenies with... Read More
Genetic variability
Genetic Variability Definition Genetic variability refers to the tendency of individual genetic characteristics in a... Read More
Community Patterns
By: Maria Victoria Gonzaga In the previous lesson, we learned what a population is, its attributes, and processes... Read More
Polymorphism
Polymorphism Definition The occurrence of two or more different forms or morphs in the population of a species is referred... Read More
Equilibrium
Equilibrium Definition In Biology Equilibrium refers to the state of balance and stability. In biology, equilibrium is... Read More
Biotic potential
When we look at the different forms of life, we often wonder how they have continued to exist one generation after another.... Read More
Natural selection
Natural Selection Definition What is natural selection in biology? Natural selection is defined as a process in nature... Read More
Carrying capacity
Carrying Capacity Definition What is carrying capacity? In biology and environmental science, the carrying capacity of a... Read More
Limiting factor
Limiting Factor Definition A limiting factor refers to any of the factors (variables) in an environment capable of limiting... Read More
Heterotroph
Heterotroph Definition What is a heterotroph? Does a heterotroph make its own food? In biology and ecology, a heterotroph... Read More
What is a species? Definition of species, different approaches
What is the definition of species? What does it take to be considered as a species? Ever since there has been an array of... Read More
Deoxyribonucleic acid
Deoxyribonucleic Acid (DNA) Definition A nucleic acid refers to any of the group of complex compounds made up of linear... Read More
Wilcoxon rank-sum test
Definition noun A non-parametric test of two samples which support exclusively on the order of observations in which the two... Read More
Reservoir host
Reservoir Host Definition A reservoir host is a host that harbors the pathogen and serves as a source of the infective... Read More
Physiological adaptation
If we look over evolutionary history, we find that it’s neither the most genius and intelligent nor the strongest and the... Read More
Neutral mutation
Neutral Mutation Definition What is a neutral mutation? Neutral mutations are the alterations in the DNA that are... Read More
Conjugation
Conjugation generally means the joining or coming together (union), such as in certain unicellular organisms (some bacteria,... Read More
Homogenous
What is homogenous? What does homogenous mean? The word homogenous has been derived from two Greek words that are... Read More