B. Density has been decreased Or D.
<span>The question says, the corn we eat today is larger and has more kernels than the corn people first grew thousands of years ago. Which process is most likely responsible for the changes that have occurred. The correct option is 'succession'. Succession is the process by which change occur in the composition, structure or architecture of a specie over a period of time.</span>
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).
We need the options in order to answer
I belive that the emperor penguin fits all the criteria of Group B.
