The earliest vascular plants were seedless, reproducing with instead of seeds (spores)
True, that is a document that is left to a person over 18 years old, who may be a family member or not, that person may be able to make decisions for the patient if he or she loses the ability to make decisions for themselves. When designating a healthcare agent, you can make sure that the medical professionals respect the patient´s wishes. The agent can also decide how wishes can be applied as the illness changes. Hospitals, doctors and others medical professionals must follow the decisions of the health agent if they were the patient´s
C. The vestigial structures. <span>A </span>vestigial structure<span> is an anatomical feature that no longer seems to have a purpose in the current form of an organism of the given species. Often, these vestigial structures were organs that performed some important function in the organism at one point in the past. However, as the population changed due to</span>natural selection<span>, those structures became less and less necessary until they were rendered pretty much useless. While most of these types of structures would probably disappear over many generations, some seem to keep being passed down to offspring even though they have no known function.</span>
A sonic boom is the sound associated with the shock waves created by an object traveling through the air faster than the speed of sound. Sonic booms generate significant amounts of sound energy, sounding much like an explosion to the human ear. Hope this helps! :)