Answer:
They have a backbone, most use legs,wings,or fins for movement.
The fact that species are becoming immune through natural selection being passed down generations
Human evolution known to be a process in which species adapt to certain
conditions of life, and in the battle of life and death, they are forced
to become stronger in order to survive in this world. Diseases have
always been present during the evolution, acting themselves as a natural
selectors - the weaker organisms get sick and die. Not just humans, but
all species have to establish a great protecting mechanism in order to
survive. That is how our bodies are built, to be able to withstand and
survive in the conditions we live in, and that is why our immune system
has to be taken care of.
Osler's nodes are split pea–sized, erythematous, tender nodules located principally on the pads of the fingers and toes. They are few in number at any given time and occur in about 15% of patients with subacute bacterial endocarditis.
Hope this help if not so sorry
There not the same because the tilt of the earth axis is 22 degrees.The sun is directly overhead at either one of the tropics of Cancer or Capricorn every six months giving high temps in these regions.If there wasn't any tilt in the earth axis there will be no season's.
