I honestly think that it would be D. Not 100% sure but it just makes sense
<span>The fertilized egg is called zygote. Then a few weeks later on, it is called an embryo.</span>
The action of phagocytes considered a nonspecific response because it is a response to any type of harmful substance with out any specificity.
Phagocytosis is a process in which a cell engulf any molecule using its plasma membrane. Phagocytes provide non specific defense mechanism as it the first line of defense of our body. our immune system has to tackle several types of foreign particles, Viruses, Bacteria and harmful proteins. This non specificity of action makes the response quicker than the specific
Water, Phosphorus, Nitrogen, Carbon. Recycles things
Its density is less than anything that it is submerged in
