Answer:
a controls what enters and leaves the cell
Explanation:
Chords that contain tones a half-step or whole-step apart are called Tone Clusters. It is a chord made up of tones only a half step or whole step apart. It can be produced on a piano by striking a group of adjacent keys with the fist or forearm.
This is also a plant division, which is made of of three different 'families. These are woody plants, that have been grounded by gymnosperms. These are also known as gnetophytes. There are more than 70 specifies, across three 'families'- the Gnetum, Welwitschia and Ephedra. These only date back to the early Crustacean period (between 145-66 million years ago). The species are found globally, however, mostly in South America and Africa.
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Answer:
Explanation:
Antibiotics are medicines that help stop infections caused by bacteria. They do this by killing the bacteria or by keeping them from copying themselves or reproducing. The word antibiotic means “against life.” Any drug that kills germs in your body is technically an antibiotic