some sorta substance in your blood that is found in your blood
The answer is A. organism, species, community.
Organizational hierarchy is the hierarchy of complex biological structures. From least complex to most complex the order is as following:
atom, molecule, organelle, cell, tissue, organ, organ system, organism, population, species, community, ecosystem, biome, biosphere.
So, A is the right choice:
Organism is the basic living system. The higher level is species - a group of organisms that are able to reproduce. The higher level is community - an interspecific<span> group that includes interacting populations.</span>
This symbiotic relationship probably developed 1.7 to 2 billion years ago. A few groups of unicellular eukaryotes have only vestigial mitochondria or derived structures: the microsporidians, metamonads, and archamoebae.
Basically helps us be protected by the sun and it’s heat, it also protects us from asteroids and stuff so by the time they hit the earth it’s smaller then it was when it entered our atmosphere (srry I doing this off by memory... I learned about this years ago-)
The selection of antibiotic resistant bacteria is an example of natural selection.
<h3>What is natural selection?</h3>
Natural selection is the process whereby organisms that are better suited or adapted to their environment have more chance of survival.
Antibiotic resistance is a phenomenon of certain bacteria that gives them an edge over their susceptible counterparts.
Antibiotic resistance is caused by evolution through the process of natural selection.
Therefore, the selection of antibiotic resistant bacteria is an example of natural selection.
Learn more about natural selection at: brainly.com/question/9830102