You got this from edg, am I correct. Well he had evidence by drawing and saw the differences between between normal finches to to the ones of Galapagos island. There were 4 different finches, two had a thick beak and two others had thin beak for small wholes where insects might be hiding. He observed the differences between the beaks.
Explanation:
Answer: Level of organization from electron to an organism is shown in the figure, have a look on it will help you a lot.
Answer:
(d). B-cells.
Explanation:
Adaptive immunity can be described as immunity which develops in response to exposure to a pathogen (or foreign molecule). throughout the life. It is divided into two types, humoral immunity and cell-mediated immunity.
Humoral immunity is mediated by B cells that secrete antibodies against particular antigens. These antibodies recognize and neutralize the antigens and activate cell-mediated immunity, which is mediated by T cells.
Thus, the correct answer is option (d).
Since nicotine is a form of a stimulant drug, in cigarette smoke it can cause addiction.
Many people who smoke are actually addicted to smoking, and cannot stop doing so easily, which is similar to how drug addicts behave when it comes to using drugs.
