LUMINOSITY
The energy that is emitted by the star per unit time is called luminosity of a star
<em>Luminosity of a Sun:-</em>
<em />
<em> 3.8 × 10²⁶ W.</em>
<em />
<em>SI unit :-</em>
<em />
<em> It is measured in Watts</em>
<em />
<em> The brightness of a star as seen from the earth means that the brightness of star from 32.6 light-years away ( from earth)</em>
<em />
<em />
Answer:
The best term that portrays the highlights of an american robin with its nearby family members is autapomorphy.
An autapomorphy is a particular component that is remarkable to a given taxon. In the given case, this component is block red gut and dark back. This component is seen in just the american robin species and not related species in the family.
Apomorphy is characterizes as a novel trans-formative attribute that is one of a kind to a specific animal categories and every one of its relatives and which can be utilized as a characterizing character for an animal groups or gathering in phylogenetic terms. For instance ownership of quills is an element one of a kind to flying creatures and is a characteristic that characterizes all the individuals from the Ave's class.
Synapomorphy is a trademark present in a tribal species and shared solely by its trans-formative relatives.
A plesiomorphy or symplesiomorphy is a tribal character or attribute state shared by at least two taxa.
The flexor digitorium profundus muscle inserts on the distal phalanges of digits II through V. The flexor carpi ulnaris muscle is one of the only anterior fore arm muscles innervated by the ulnar nerve, while the flexor pollicis longus muscle has its origin on the radius and the interosseous membrane and the flexor digitorium superficialis muscle inserts on the middle phalanges of the digits II through V.
They build part of our ecosystem