As cells die, and reproduce from time to time, educational references show that every seven years, all cells have been replaced and considered as brand new. This also applies to the skeletal system. However, this statement is still not verified by health researchers.
<u>ANSWER:</u>
Ogallala aquifer supplies "one-third of the irrigation water" in the United States.
<u>EXPLANATION:</u>
- The "Ogallala aquifer" is located in the "Great Plains of the United States" and therefore gives life to almost all fields of the US.
- The aquifer supplies water for one-third irrigation needs of the United States. The Ogallala is an underground reservoir and is very big in size and the agriculture production in the US is dependent on this aquifer.
- The aquifer is however depleting and water level in many areas has become very low.
- It is important for United States to protect and preserve this aquifer so that the agricultural production does not suffer.
Energy is transported by photons from the Sun to Venus (radiation).
Answer:
Carbondioxide gas, release oxygen and provide food.
Explanation:
Plant absorb carbondioxide gas, release oxygen and provide food to the animals are the was that plants impact the cycle. Plant absorb carbondioxide gas from the surrounding air in the presence of sunlight and absorb water from the soil. Both carbondioxide and water react with each other in leaves producing glucose and oxygen. Glucose is stored in different parts of plant body whereas some oxygen is used by the plant for respiration and the remaining is released in the atmosphere. The food produced in the plant can be eaten by the primary consumer for their growth and in that way the ecosystem moves in forward direction.
The correct answer is option b, that is, a polygenic trait that is affected by the number of alleles present.
There are three genes associated with a usual form of glaucoma, so it must be the polygenic trait, that is, it comprises more than one gene. The polygenic traits are affected by the number of alleles. In this circumstance, there are more than twenty genetic loci present, which signify that there must be a larger quantity of alleles for all the loci.