20 results found

Search Results for: sampling

Ecological Research: Measuring & Analysis

By: Maria Victoria Gonzaga Previously in this lesson, we learned that high biodiversity is essential to a healthy... Read More

Chorionic villus sampling

Chorionic villus sampling (CVS) is a form of prenatal diagnosis to determine genetic abnormalities in the fetus. It entails... 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

Inheritance and Probability

Reviewed by: Mary Anne Clark, Ph.D. Gregor Mendel, an Austrian monk, is most famous in this field for his study... Read More

Ecology & Biodiversity: New Zealand Flora & Fauna

New Zealand is known for its unique biodiversity, caused by its remarkable geography and geologic history. Breaking away... Read More

Replication

Replication, in the general sense, is to create a copy or a duplicate. Thus, in biology, replication is commonly associated... Read More

Null hypothesis

Null Hypothesis Definition Null hypothesis is defined as “the commonly accepted fact (such as the sky is blue) and... Read More

Plankton

Plankton is a diverse group of typically microscopic, aquatic organisms suspended in the water column and rely on water... Read More

Neutral mutation

Neutral Mutation Definition What is a neutral mutation? Neutral mutations are the alterations in the DNA that are... Read More

Quadrat

Definition noun A square or rectangular plot of land used to mark off at random a physical area to isolate a sample and... Read More

Tools and Methods for Data Collection in Ethnobotanical Studies of Homegardens

Tools and Methods for Data Collection in Ethnobotanical Studies of Homegardens CHRISTIAN R. VOGL BRIGITTE VOGL-LUKASSER... Read More

Ecosystem diversity

Ecosystem Diversity Definition What is ecosystem diversity? Ecosystem diversity deals with the study of different... Read More

Genetic diversity

Genetic Diversity Definition Each species is composed of individuals with their own set of genes. A gene is the inheritance... Read More

Phylogenetics

Phylogenetics Definition Phylogenetics is the scientific study of phylogeny. It studies evolutionary relationships among... 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

Body fluid

Body Fluids Definition What is body fluid? Literally, body fluid is the fluid of the body. The adult human body is ~50-60%... Read More

Human Reproduction

Terminology and Concepts Primary reproductive organs are called gonads - testes in the male and ovaries in the female.... Read More

Contamination

Contamination Definition Contamination, sometimes interchanged with pollution, is the existence of live things or... Read More

Taxon

Taxon Definition When studying biological organisms, it’s easier to define, classify and understand them when we follow a... Read More

Actions of Caffeine in the Brain with Special Reference to Factors That Contribute to Its Widespread Use

IV. Actions of Caffeine on Brain Functions and Behavior Having discussed the molecular and neuronal actions of caffeine,... Read More