Answer:
All animals share a common ancestor.
Explanation:
All living organisms including animals have evolved from common ancestral organism. It is evident from various researches in relation evolutionary diversification of species. The process by which numerous variety of species are formed from a common ancestor is known as speciation. The attached diagram showing the phylogeny tree of life is a solid evidence of common ancestral origin of life.
Plants, microorganisms, and animals
Lymphedema is the condition I believe.
A portal of entry<span> is the site through which micro-organisms enter the susceptible host and cause disease/infection. Infectious agents enter the body through various </span>portals<span>, including the mucous membranes, the skin, the respiratory and the gastrointestinal tracts.</span>
Absence of oxygen
fermentation is an anaerobic (meaning doesn't require oxygen) process