Answer:
integumentery system
Explanation:
your skin is actually the first protection against illness-causing pathogens.
the organisms in the order Gymnophiona have no limbs. Option 3
<h3>What is Gymnophiona ?</h3>
Gymnophiona also called Apoda, area known as one of the three major orders of the class Amphibia.
Its members are known as caecilians which means “sightless” or “blind.”
Majority of the organisms in this group are limbless and wormlike amphibians that live underground in humid tropical regions throughout the world.
They are believed to have internal fertilization.
Their heads are blunt, and their skulls are bony and compact in nature.
Since they are limbless, they have no limbs
Thus, the organisms in the order Gymnophiona have no limbs. Option 3
Learn more about amphibians here:
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Yes you can. The atomic mass measured from the proteins and neutrons in an atom, since you know he number of protons, you can subtract and be left with the number of neutrons.
Answer:
There are six facets per thoracic vertebrae: two on the transverse processes and four demifacets—the facets of the transverse processes articulate with the tubercle of the associated rib. The demifacets are bilaterally paired and located on the superior and inferior posterolateral aspects of the vertebrae.
Explanation:
