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Answer:
False
Explanation:
Constellations are the group of stars with certain pattern. Constellations are seen during specific period of year due to revolution of earth around the Sun. Sun blocks some constellations during specific part of year, making them invisible from earth.
Example: Cygnus and Sagittarius are the summer constellations that are visible during summer months while Taurus and Orio are the winter constellations.
Answer:
Bryophytes
Explanation:
Bryophytes are small plants, usually a few inches tall, that preferentially live in moist, humid and shady places due to the absence of nutrient-carrying vessels.
Due to the absence of nutrient-carrying vessels in the bryophytes, water is absorbed from the environment and is transported in these plants from cell to cell throughout the body of the plant. This type of transport is relatively slow and limits the development of large plants. For this reason, bryophytes are always small, short.
Biology states that one thing is certain: if the terrestrial plant has no conductive vessels, it will be small and live in preferably moist and shady environments, for adaptive reasons.
B. Molecule
C. Glycogen
D. Electron
Answer:
Option B, Xylem --> phloem --> endodermis --> stele --> epidermis --> cortex --> cambium ///
Explanation:
The start of water transportation via roots takes place through the Xylem as these are the specialized cell in roots to intake water from the ground. These cells are arranged in the form of layer and filters the water before transporting. After the filtration in Xylem, water then passes to phloem (which are also part of conducting system of plants and runs parallel to the xylem). After the phloem, water then goes to the central part of the root which is known as stele and then it reaches the epidermis. From epidermis , absorbed water then goes to the cortex of other tissues and organ and finally it reaches the cambium.
Hence, option B is correct
amylase and proteases
lipases
amylase, proteases, lipases, nucleases
Nucleases are the enzymes that are unique to the pancreas. These are enzymes which break down nucleic acids DNA and RNA into nucleotides. When these nucleotides reach the ileum, they are further degraded or digested into sugars, bases and phosphates. These nucleases are known as DNAase and RNAase
Other pancreatic enzymes such as amylase and protease are also produced by other digestive organs such as the salivary glands and the small intestine respectively. However no other digestive organ has been known to produce nucleases apart from the pancreas.
Nucleases are of two main types, namely exonucleases which cut off the end of a nucleotide and endonucleases which will cut out certain nucleotide sequences right in the middle of a nucleic acid.
The enzymes that are secreted only by the pancreas are amylase, proteases, lipases, and nucleases. Therefore, option (4) is correct.
Digestive organs include the pancreas. It secretes digestive enzymes into the small intestine to facilitate food digestion. Amylase breaks starches into sugar molecules. Trypsin and chymotrypsin break proteins into amino acids. Fatty acids and glycerol from lipases aid fat breakdown and absorption.
Finally, nucleases break down DNA and RNA into nucleotides. The pancreas exclusively produces and secretes these enzymes to aid small intestine digestion and absorption. Therefore, option (4) amylase, proteases, lipases, and nucleases is correct.
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