Serous membrane is a thin membrane with two layers that lines and covers the wall and organs of the thoracic and abdominopelvic cavities, these organs includes the heart, lungs and the body cavity. Its role is to prevent friction between the organ and the body cavity wall. The membrane is formed by simple squamous epithelium which are filled with connective tissues.
The liver role in lipid digestion is the PRODUCTION OF BILE, A SOAPY COMPOUND THAT EMULSIFIES LIPIDS. Bile is a digestive juice that is produced by the liver. In humans, lipids are digested and absorbed at the small intestines. Bile which contains bile acids emulsify lipids at the small intestines so that the lipids can be acted upon by the enzyme pancreatic lipase.
Answer:
Four conditions are needed for natural selection to occur: reproduction, heredity, variation in fitness or organisms, variation in individual characters among members of the population.
Answer:
R = 480 Ohm
Yes, the current is steady since the power supply is a constant 12V (comming from the battery).
Explanation:
U=I*R
R = U / I
U = 12 V
I = 0.025 A
R = 12 / 0.025
R = 480 Ohm
