Chemical composition and physical properties
Answer:
is a form of RNA processing in which newly made precuesor messanger
splicing takes place within the nucleus
<h2>Xylem;phloem and cork</h2>
Explanation:
Wood is mainly known as secondary xylem found in trees
- Xylem is basically the vascular tissue which is responsible for the conduction of water and nutrients from the roots to shoots and leaves
- Secondary xylem is formed from secondary growth and is associated with lateral growth and grows from the vascular cambium
- Its cell walls are thickened by deposition of lignin which provides mechanical support to plants and consists of tracheids and vessels that are shorter and wider
- In large woody plants secondary xylem get differentiated into heartwood and sapwood
Bark is essentially made of phloem and cork
- Bark sole purpose is to provide protection to trees
- The inner bark is produced by vascular cambium which consists of secondary phloem whose innermost layer transports food from the leaves to rest of the plant
- The outer bark is a dead tissue which is the product of cork cambium
Answer:
B. Space telescopes are above the distortion of Earth's atmosphere, cloud and light pollution.
Explanation:
Telescopes are powerful optical instrument which have the ability of viewing distant objects such as stars and galaxies in space and hence affords us the ability to make findings and research without having to get so close. Adoption of space telescopes is preferred to those place on earth usually due to the effect of absorption and reflection which has would have impacted some electromagnetic spectrum before reaching the earth. Also, the distortion introduced into measurement taken due to the the Earth's atmospheric conditions such as clouds may blurr measurement obtainednis also a vital reason for the adoption of space telescope.
