The correct answer to this question is this one: "C. The plant exists as a diploid organism, and at other times as a haploid." Vascular plants exhibit alternation of generation. The alternation of generation is presented as the plant exists as a diploid organism, and at other times as a haploid.<span>
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In biology, taxonomy is the scientific study of naming, defining and classifying groups of biological organisms based on shared characteristics
Explanation:
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Answer:
The inner moons are small dark bodies that share common properties and origins with Uranus's rings. ... William Herschel discovered the first two moons, Titania and Oberon, in 1787. The other three ellipsoidal moons were discovered in 1851 by William Lassell (Ariel and Umbriel) and in 1948 by Gerard Kuiper (Miranda).
The basic building block of all minerals is the _____________. Select one: a. silicon tetrahedron b. silica tetrahedron c. silicone tetrahedron d. silicate tetrahedron
The right answer to this question is option b – silicate tetrahedron. It is the major constituent of the silica minerals. The structure of silica tetrahedron consists of one silica atom surrounded by four atoms of oxygen. It is found in all silica minerals and is very strong and stable combination that forms the structure of the minerals by sharing oxygen at its corner. Silicon has 14 electrons, of which two electron lies in the innermost cell, 8 lies in the next shell and the rest 4 are known as valence shell. Thus it interacts with oxygen to fill its valence shell as oxygen is a strong oxidizer. Each of oxygen’s in the tetrahedron shares one electron from the silicon atom in a covalent bond, so the resulting oxygen atom is an anion with one negative charge. Thus, four negative charges, SiO44– exists in a tetrahedron structure
