The pentose sugar on RNA is called ribose. (a trick to remember it is that the "R" in RNA stands for ribo)
Hope this helps :)
One of the most common and well known atmospheric optics, the rainbow is formed when sunlight is refracted and reflected by water. A collection of droplets in the atmosphere — whether from rain, a waterfall, a sprinkler, etc. — disperses the entire visible light spectrum at an angle, resulting in the circular shape.
CF is a recessive type of disorder which means that both parents must carry the gene in order for the child to inherit the disease. If the child only inherits 1 copy of the affected gene, then the child becomes a carrier. Carriers do not manifests symptoms of the disease but they can pass the disease to their children.
With both parents as carriers, they will have the following chances: 50% carrier children, 25% affected child, and 25% normal child.
Answer: 1.) The three important need for water includes:
--> it is important for biochemical mechanisms such as digestion and cellular respiration
--> it serves as a habitat for many species of plants and animals.
--> it participates in cycling of all materials used by living things.
2.) Water is distributed through the biosphere by WATER CYCLE.
Explanation:
Water is necessary for the maintenance of life which is distributed through the biosphere by a cycle known as the WATER CYCLE.
All living organisms contain a high percentage of water. Plants take up water form the soil in large amounts and lose most of it by transpiration. Only a small amount of the absorbed water is used in photosynthesis and other metabolic reactions. Animals take in water constantly from their food and drink. Like in plants, most of the water they take in comes directly from the non- living environment and not through the food chain. They lose most of this water in the air they breathe out, in faeces and urine. All living organisms release water during cellular respiration.
In nature, water circulates mainly within the abiotic ( non living) environment; only a small portion recycles through living organisms.
Water cycle is maintained mainly by the evaporation and condensation of water in the abiotic environment. Water that enters the biotic components of the ecosystem returns to the abiotic environment through respiration, decay, excretion and transpiration.
The correct answer would be C.seasonal changes in the amount of daylight. Since leaves require sunlight in order to perform photosynthesis to keep the tree alive, when seasonal changes occur where there is not enough sunlight throughout the day, trees go dormant for the season until conditions are right.