Clearly, there is a variation in these marine snails so 'No variation' is definitely not an answer. Artificial variation is when humans interfere with their genetic engineering that modifies the DNA of the organism. Assuming that this is natural, then this is not the answer.
Environmental and genetic variation can be easily confused with. Genetic variation is more on the genotype, the composition of the genes that form the physical traits. While environmental variation is more on the phenotype, or the trait that you see and observe. However, there can be genes that are inherited, but due to the influence in environment, they don't show up. So, assuming that these colors are consistent from birth, then the answer would be genetic variation.
The virus will be transmitted through the birds feces and could be spread to other animals and humans.
Water molecules forming hydrogen bonds with one another. The partial negative charge on the O of one molecule can form a hydrogen bond with the partial positive charge on the hydrogens of other molecules. Water molecules are also attracted to other polar molecules and to ions.
Answer:A coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate. ... Unlike sea anemones, corals secrete hard carbonate exoskeletons that support and protect the coral.
Coastal oceans are commonly defined as the areas from the shoreline to the outer edge of the continental margin. They connect the continents to the open ocean and serve as a link for transporting organic and inorganic, natural and anthropogenic material from land to sea.
Coastal oceans in tropical areas have similar characteristics to their temperate counterparts. ... Coral reefs are biologically diverse and rich habitats that occur in relatively nutrient-poor environments along coastlines. Areas that have too many nutrients often harbor too much algal growth to sustain coral growth.,
The A DNA function in a cell is stored
