An autotroph is an organism that prepares its own food using simple organic materials whist a heterotroph is an organism that cannot prepare its own food but depends on other organisms for survival.
Number one is y I think and number two is w. three should be x and four is z. I'm not sure though
Worldwide, there are 107 boy babies born for every 100 girl babies. This skewed ratio is partly due to sex-selective abortion and "gendercide," the killing of female infants, in countries such as China and India where males are more desired. But even discounting those factors, the completely natural male-to-female sex ratio still hovers around 105:100, meaning that women are inherently more likely to give birth to boys. Why?
Several factors influence whether a sperm containing a Y sex chromosome or one containing an X chromosome will be first to fertilize an egg, including parental ages, their environmental exposure, stress, the stage in the mother's ovulation cycle and even whether she has had children previously; all these forces combine to set the average sex ratio at fertilization at 105:100.
It is known that all living things are either the eukarya, bacteria, or the archaea. These three broadest categories in the classification of life are called domains. These also known by the "Three Domain System." The correct answer is A.
In science, the practice of classifying organisms is called taxonomy (Taxis means arrangement and nomos mean method). The modern taxonomic system was developed by the Swedish botanist Carolus Linnaeus (1707-1778). ... To distinguish different levels of similarity, each classifying group, called taxon
