<span>A) water, rock, and tectonic cycles</span>
Answer:
To describe a new specie, it has to be carefully examined in order to determinate that it doesn´t belong to an another specie already described.
Once it has been determinate the novelty of the specie, the researchers write a formal description of it, takes pictures and name it with the new scientific name. Then, the researchers refer it to a scientific magazine. The editor of the publication will comunicate the new discovery to an experts in that gender. If the experts agreed, and the publication accept the study, the specimen converts to a new specie. The process is long and could take years betwen the inicial discovery and the formal acceptation of the new specie
Explanation:
B.) Diffusion <span>is the general process in which molecules move from an area of higher concentration to an area of lower concentration
Hope this helps!</span>
Answer:
1) the genes and chromosomes do not double after each generations because parental sex cells are haploid and only contain one set of chromosomes. During fertilization the two cells fuse to form a diploid zygote with two copies of genes and chromosomes. For example a normal human has 46 chromosomes (2 copies of 23 chromosomes) during reproduction gametes which contain 23 chromosomes (haploid) fuse to form an offspring with the correct number of chromosomes ( 23 + 23 = 46).
2) offspring only receive one set of chromosomes from each parent so to maintain the chromosome number of humans. If this did not happen you would not be the same species.
<span>Leptin. Leptin is produced by fat cells and released when your body has enough fat in storage. When leptin reaches the brain, it gives your body a feeling of fullness so that you will not want to continue eating.
Individuals with leptin resistance, where the leptin hormone signals are not received as they should be, are often overweight because they do not have the same brain signals telling them that their body is full.</span>
