There are many theories about why living thins sleep, however, scientists are still unsure about what the answer to this question may be. Some say it is because of its restorative powers - after a good night's sleep, you feel rested, and all your brain and bodily functions work better than when you are exhausted. During sleep, some rejuvenating and growth hormones are created, which again adds to our advantage. You also relieve stress that has accumulated during the day. These are some of the reasons why we have to sleep.
Answer:
Los tres ejemplos en donde se pueda emplear una polea movil son: un aljibe, un multigym(aparato para realizar actividad fisica) y una perciana.
Explanation:
Las poleas moviles generan movimientos de traccion, donde se mueve una masa pesada o un objeto de gran peso, al utilizar este sistema de poleas el peso del objeto es disminuido.
Tiene un sistema de gancho, con cuerda y dos poleas( a veces una de estas poleas suele ser fija para poder generar el centro rotacional de la traccion)
Answer:
1. night blindness
2. Ovule
3. Oxidation
4. Inflorescence
Explanation:
1. Night blindness is odd among haemophilia, colour blindness, thalassaemia because night blindness is not an inheriditary disorder while other three are inheriditary diorder.
2. Ovule is odd among gene, chromosome, allele, ovule because ovule develops into a seed when fertilized and is not a part of genetic material DNA while the other three are part of genetic material.
3. Oxidation is odd among diffusion, imbibition, and osmosis because other belongs to the method of conduction of water and minerals by plants.
4. Inflorescence is odd among seed shape, seed colour and flower position because inflorescence is a group pf flower is flower axis while other belongs to a characteristic of a single or individual flower.
Hence, the correct answer is:
1. night blindness
2. Ovule
3. Oxidation
4. Inflorescence
Answer:
A cell begins to produce a new type of protein. This is most likely due to an alteration of the sequence of bases in a section of a chromosome.
Explanation:
The DNA is deoxyribonucleic acid and carry genetic info for the cell. Chromosomes are made up of genes and they determine which trait that each offspring will have
DNA controls the production of protein in the cells and is the responsible part of the chromosomes for the synthesis of them. The process of protein synthesis is known as translation. <em>An alteration in the DNA results in an alteration in the mRNA because it decides the kind of protein will be synthesized in the body. With a different message, the rybosomes the protein composition will change and a new type of protein will be synthesized.</em>
