Quadrats that are too large, too small or spaced inappropriately often result in errors. For example, larger species require larger plots. Randomly spaced quadrats that are too small might miss too many individuals, resulting in under-representative estimates of population size. What are the two basics requirements of all the quadratsRead More →
Which of the following statements is a logical consequence of the second law of thermodynamics? Every chemical reaction must increase the total entropy of the universe. Which of the statements is a consequence of the first law of thermodynamics quizlet? Which of the statements is a consequence of the firstRead More →
Unicellular organisms generally do not go through any cell differentiation, except unicellular yeasts. While multicellular organisms go through categorized cell division to form differentiated cells, which can perform particular tasks. Which type of organism consists of specialized cells? A unicellular organism depends upon just one cell for all of itsRead More →
Unicellular organisms respire by the process of diffusion. Diffusion is the process by which molecules fom a high concentration region move to a low concentration region. Unicellular organisms breathe through direct diffusion via the cell membrane. Can unicellular organisms Cannot reproduce? Unicellular organisms cannot reproduce. Reproduction is the process ofRead More →
Like you, scientists also group together similar organisms. The science of classifying living things is called taxonomy. Scientists classify living things in order to organize and make sense of the incredible diversity of life. Modern scientists base their classifications mainly on molecular similarities. Who was the first biologist to classifyRead More →
Classification fills a very human need to impose order on nature and find hidden relationships. By grouping organisms and species together it was originally hoped that huge masses of data could be stored and retrieved more easily. Knowledge about a species could be saved and recovered in a logical manner.Read More →
Hint: All of an organism’s activities like growth, movement, development, responsibility, reproduction, etc. are due to metabolism. Metabolism does not display in a non-living entity. All organisms can sense and respond to environmental factors, from primitive prokaryotes to most advanced and complex eukaryotes. What are the defining properties of livingRead More →
(NOO-troh-fil) A type of immune cell that is one of the first cell types to travel to the site of an infection. Neutrophils help fight infection by ingesting microorganisms and releasing enzymes that kill the microorganisms. A neutrophil is a type of white blood cell, a type of granulocyte, andRead More →
Large, multicellular life forms may have appeared on Earth one billion years earlier than was previously thought. Macroscopic multicellular life had been dated to around 600 million years ago, but new fossils suggest that centimetres-long multicellular organisms existed as early as 1.56 billion years ago. Why did multicellularity evolve multipleRead More →
Organisms grouped in similar ranks show similarities amongst its members. Common names of organisms may vary depending on where in the world they are found. Assigning scientific names through the process of classification makes it easier for scientists to identify it. How are organisms classified definition? Biological classification is theRead More →