Adaptive immunity is based upon the interactions between specific immune system cells and a specific antigen. This happens when cell surface of B cell binds to antigen thus lead to activating B cells. Hope this is the answer and this would help.
Answer:
Plants absorb nutrients and water and and is anchored through their roots
Explanation:
The roots absorb water and minerals from the soil and anchor the plant in the ground. The stem supports the plant above ground, and carries the water and minerals to the leaves. The leaves collect energy from the Sun and make food for the plant, using an amazing process called photosynthesis.
It is commonly called as hearing or auditory perception. Hearing is the primary function of the body's auditory system. It enables to sense sound via detection of vibrations/sound waves thru the ear and processed these as nerve impulses and sent it to the brain.
Some type of bird skull. Maybe some type or bird pecker with the beak on it