As soon as the white blood cells detect an unknown cell (the pathogen) they produce antibodies or they engulf them, i dont know if this will help but I hope this does :)
They have definite volumes, but no shape, they can change shapes based on the shape of the container.
D.) "Pepsin" <span>speeds up the breakdown of proteins in food
Hope this helps!</span>
Answer:
Revolving Service Structure (RSS) of launch pad 39B
Answer: A prokaryotic cell is a simple, single-celled (unicellular) organism that lacks a nucleus, or any other membrane-bound organelle. We will shortly come to see that this is significantly different in eukaryotes. Prokaryotic DNA is found in the central part of the cell: a darkened region called the nucleoid Unlike Archaea and eukaryotes, bacteria have a cell wall made of peptidoglycan, comprised of sugars and amino acids, and many have a polysaccharide capsule (Figure 1).
Explanation:
