Step-by-Step Solution:1. Understanding Variation: - Variation refers to the differences that occur within a species, particularly at the genetic level. These variations can manifest as changes in physical t
Fungi have developed compounds with bitter or pungent properties (e.g., some indole alkaloids) that can be also in some occasions linked to toxicity [6,40], and can deter potential predators and pathogens, or overtake the defenses of potential preys and host organisms. Indeed, it has been ...
The DNA of all living organisms has the same structure and code, although some viruses use RNA as the information carrier instead of DNA. Most animals have two copies of each chromosome. In contrast, plants may have more than two copies of several chromosomes, which usually arise from errors...
Since the 1940s, evolutionists have viewednatural selectionas an aimless mechanism: random genetic variations arise, and chance environmental events allow the most beneficial (or "fittest") ones to survive. More recently, biologists have found it necessary to introducethe actual behavior of living cre...
(summarized in Table1). We set aside three processes that reflect world orientation, including behavioral, ecological, and normative processes. These processes present a change of the organisms’ actions and environment which transform as a result of the accumulating transformations, and they will be...
The seas confront organisms with a suite of abiotic stressors that pose challenges for physiological activity. Variations in temperature, hydrostatic press
In molecular terms, alleles are different forms of the same gene. There can be more than two alleles of a gene in a population of organisms. But any given organism has only two alleles at the most. Shorter plants usually cannot compete with the taller forms in the wild. A short mutant ...
Guidance of cell migration by rigidity gradients, which arise from differential structural properties of the extracellular matrix. Most cells migrate up rigidity gradients (that is, in the direction of greater stiffness) but some cell types have been reported to migrate down rigidity gradients (known...
Some variations are favorable, in that they make those individuals best-suited to their environment, and some are not. Those organisms with favorable variations will survive and pass those traits on to their offspring; those individuals with unfavorable variations will die and not pass on their tra...
In molecular terms, alleles are different forms of the same gene. There can be more than two alleles of a gene in a population of organisms. But any given organism has only two alleles at the most. Shorter plants usually cannot compete with the taller forms in the wild. A short mutant ...