<span>Facilitated diffusion
Diffusion
occurs because of the movement of molecules from the region of higher
concentration to the region of lower concentration. This movement of
molecules occurs due to a thermal motion. Diffusion normally occurs
between two compartments having difference in concentration. In case of
fluid it moves from the region of higher concentration to the region of
concentration until a balance is reached. The process of diffusion is
very important for the humans as well. The oxygen that humans breathe in
gets diffused with the blood.<span> </span></span>
Answer:
The testes are oval organs about the size of very large olives that lie in the scrotum, secured at either end by a structure called the spermatic cord. Most men have two testes. The testes are responsible for making testosterone, the primary male sex hormone, and for producing sperm.
Explanation:
Royal colonies: Another term for provincial colonies; colonies that were under the direct control of the King, who usually appointed a Royal Governor. proprietary colonies: Owned by a person (always a white male) or family, who could make laws and appoint officials as he or they pleased.
Answer: carbon dioxide and water are combined in a series of reactions, sunligh provides energy for the reactions, the end result of photosynthesis is the production of sugars (glucose, a food) and oxygen (a gas)
Explanation: organisms use both oxygen to turn glucose into carbon dioxide, water and energy in the form of ATP.
Answer:
with traits best suited to their current environment
Explanation:
Natural selection proposes that nature selects those organisms that are well adapted to the prevailing environmental conditions to survive and reach reproductive maturity with the favourable characteristics being passed on to the offspring. Those organisms that are poorly adapted die leaving no offspring and their traits are eventually eliminated.
