Answer:
Ferns have an intermediate stage, called a gametophyte, which then grows into a mature fern. There are two distinct stages in the life cycle of ferns. The first stage is that of the gametophyte. Spores are produced on the underside of mature plants.
Both the gametophyte and the sporophyte of the fern photosynthesize and are thus autotrophic; the shift to a dominant sporophyte generation is taking place.
Explanation:
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Communication most times occurs across several paths or channels. The type of communication where you send information over a network is;
Digital communication occurs when information is shared between two or more computers.
When we send text messages, emails, or upload our social media statuses, we are sending our information through a network. These are forms of digital communication.
Remember that a network involves the linkage of two or more computers. So when we send messages through our computers, other computers receive the information.
Therefore, sending a message over a network is digital communication.
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Answer:
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Explanation:
Before things like mountains were typically boundaries since they were a pain in the butt to cross. But with modern planes, and depending on the mountian, cars, mountains aren't as big a pain anymore. Deserts might have also been a boundary before. Today you turn on the AC and drive straight across it. At least for technologically advanced western countries, there really isn't any geographic feature we can't easily get around.