Answer:
Birds are adapted by changing their beaks.
The answer would reside with the dominant cattle which is the hornless cattle<span />
Answer:
the movement of ions or molecules across a cell membrane into a region of higher concentration, assisted by enzymes and requiring energy.
According to the Big Bang theory, the universe was once very dense and is now expanding.
These organisms convert nitrogen in the soil to ammonia, which can then be taken up by plants. This process also occurs in aquatic ecosystems, where cyanobacteria participate. After nitrogen has been fixed, other bacteria convert it into nitrate, in a process known as nitrification.
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