Answer:
Most planets discovered using the transit method have large diameters because planets having large diameters results in a more pronounce (noticeable) dimming effect during their transit between a star and an observer and are therefore readily discovered using the transit method than planets that have a smaller diameter
Explanation:
The transit method involves the detection of a transit (dimming) during the motion of an object between a star and an observer such as the motion of Mercury or Venus between an observer on Earth and the Sun
A large planet gives a higher dimming effect than a small planet and they are therefore more easily detectable using the transit method
The transit method is the method used to discover most of the known exoplanets which are planets that revolve around a star which is not the Sun
As the planet transits in front of a star in an observer's line of sight, it results in the dimming of the stars light by an amount equivalent to the ratio of the planet's to the star's circular areas
Example of planets discovered using the transit method includes the planet HD209458b.
Upon inhalation, the diaphragm contracts and flattens and the chest cavity enlarges. This contraction creates a vacuum, which pulls air into the lungs.
Answer:
True! :) Also, reminder drink some water and relax. <3
Explanation:
Answer:
Speciation is an evolutionary process by which a new species comes into being. A species is a group of organisms that can reproduce with one another to produce fertile offspring and is reproductively isolated from other organisms. Speciation can be driven by evolution, which is a process that results in the accumulation of many small genetic changes called mutations in a population over a long period of time. There are a number of different mechanisms that may drive speciation. One of these is natural selection, which is a process that increases the frequency of advantageous gene variants, called alleles, in a population. Natural selection can result in organisms that are more likely to survive and reproduce and may eventually lead to speciation. A second process called genetic drift describes random fluctuations in allele frequencies in populations, which can eventually cause a population of organisms to be genetically distinct from its original population and result in the formation of a new species.
Explanation:
Answer:
b) contact transmission.
Explanation:
Contact transmission of pathogens occurs directly or indirectly between the source of the pathogens and the host organisms. During contact transmission by droplet spread, the pathogen is carried on smaller particles. These particles move through air for a very short distance, usually less than a meter. Therefore, droplet transmission of a pathogen requires that the source and host are present in close proximity.
