Gene flow also know as gene migration is the transfer of genetic variations or characteristics from one population to another. The gene flow can be well illustrated using a flock of geese. A flock of geese migrate and enter into the territory of another flock of geese and start interbreeding. This will result to transfer of the different genes into the off springs.
Answer:
Tissues in organs are precisely arranged so that they can work in harmony in performing organ functions. This is similar to an orchestra that contains various musical instruments, each of which is located in a precise place and contributes exactly at the right time to create harmony. Like musical instruments that are mixed and matched in various types of musical groups, tissues and cells also are present in several different organs and contribute their part to the function of the organ and the maintenance of homeostasis.
Answer:
The color of skin is influenced by a number of pigments, including melanin, carotene, and hemoglobin. Recall that melanin is produced by cells called melanocytes, which are found scattered throughout the stratum basale of the epidermis.
