Top 10 Foods Highest in Calories Written by Daisy Whitbread, MScN Calories are the basic unit of energy found in all foods and are necessary to maintain the body's vital functions or basal metabolic rate. The amount of calories a person needs depends on factors like their age, gender, and lean muscle mass.
Earthworms may appear to have radial symmetry because of their cylindrical shape, but DON'T BE FOOLED! They actually have BILATERAL symmetry. This is because they have an up and down (dorsal and ventral), and front and back (andterior and posterior).Linus Â· 9 years ago.Thumbs up.arthworms may appear to have radial symmetry because of their cylindrical shape, but DON'T BE FOOLED! They actually have BILATERAL symmetry. This is because they have an up and down (dorsal and ventral), and front and back (andterior and posterior). Linus Â· 9 years ago. Thumbs up.
Answer: While earthworms do not have lungs, like you, they must have oxygen to live. You have lungs that fill will air when you inhale. In your lungs, oxygen from the air is mixed with blood, and then the blo od carries oxygen to all the parts of your body.Instead of lungs, earthworms have a thin permeable skin through which oxygen in air passes through.The oxygen does not directly pass through the earthwormâs thin outer skin.n your lungs, oxygen from the air is mixed with blood, and then the blo od carries oxygen to all the parts of your body. Instead of lungs, earthworms have a thin permeable skin through which oxygen in air passes through. The oxygen does not directly pass through the earthwormâs thin outer skin.