<span>The pulmonary vein is </span><span>the structure of the human heart which is a large vein that carries oxygenated blood from the lungs to the left atrium of the heart.</span>
Ectotherms always have a higher metabolic rate than endotherms of the same size because they have to burn large amount of the food,fuels in them.
<h3>Why are Endotherms large?</h3>
They are extra energetically expensive than ectothermy. Because endotherms use extra electricity than ectotherms, the equal quantity of meals can keep a bigger populace of similar-sized ectotherms than endotherms.
One different essential point: as a preferred rule, endotherms have extensively better metabolic charges than ectotherms. That's due to the fact they should burn huge portions of fuel—meals—to keep their inner frame temperature.
Read more about the endotherms :
brainly.com/question/6357350
#SPJ4
The two set of lines on the globes are the lines of latitude and longitude.
Latitude is the line that goes vertically.
Longitude is the lines that goes horizontally.
Some of the maps have these lines on them going across horizontally and vertically.
Answer:
Gills, Scales, swim bladder, and backbone.
