In this
case, when Alicia is being tickled by her older sister, the divisions of
the nervous system which are responsible for receiving the signals from her
sister’s fingers are called somatosensory cortex and anterior
cingulated cortex nervous system.
When you are touched lightly, the effect of having that ticklish
sensation is caused by the analysis of two regions of the brain. For example,
when our brain analyses the pressure of the touch, this is the work of
the somatosensory cortex. On the other hand, as
soon as something touches your skin, the signal sent from the skin's sensory
receptors also passes through the anterior cingulated cortex.<span>This is
where the pleasant feelings are governed. </span>
Human diploid cells have 46 chromosomes (the somatic number, 2n) and human haploid gametes (egg and sperm) have 23 chromosomes (n). Retroviruses that contain two copies of their RNA genome in each viral particle are also said to be diploid.
Answer:
If larger seed became available, directional selection will act in favor of bigger beak finch.
Explanation:
In the case that more large seeds were to become available, then directional selection will start to influence in the beak size, favoring those individuals with bigger beaks. Those individuals with shorter beaks will start to disappear as these animals won't be able to eat the larger seed.
Directional selection <em>increases the proportion of individuals with an extreme phenotypic trait,</em> in this case, large beaks.
This selection presents more frequently in those cases in which <em>interactions between living organisms and the environment</em> modify in the same direction.
Underground, at the point where slippage along the fault begins.
Yes, Only bacteria can convert molecular nitrogen, into a form which can be utilized by other living beings such as plants. The nitrogen fixed by the bacteria, by this process, become available to the plants, which uptakes it, for their own growth, and is also accumulated in their seeds. Further, leguminous plants have nitrogen-fixing bacteria associated with them in synergy. They provide the plant with additional nitrogen, and in exchange obtain nutrients from the plant, for their growth and division.
