The plants were providing the necessary oxygen for the animals to breathe and the animals were serving as an aide in photosynthesis for the plants by producing carbon dioxide.
<span>The three properties of components of the universe are frequency,wavelength and Intensity can be determined using electromagnetic radiation.Frequency is defined as the number of cycles per second, and it's unit is Hertz (Hz).Formula is E=hν. Wavelength is the distance of one full cycle of the oscillation.The wavelength related to frequency formula is c=λν.Amplitude is the distance from the maximum vertical displacement of the wave to the middle of the wave. Then amplitude tells about the brightness of the wave.</span>
Two amino acids<span> are linked together by the formation of a </span>peptide<span> bond. </span>Amino acids<span> joined by a series of </span>peptide bonds to make<span> a </span>peptide<span> chain. Thus , a protein molecule is a </span>polypeptide chain <span>composed of many </span>amino acid residues<span>.</span>
Answer: Vascular smooth muscle
Explanation:
They are lined with smooth muscle tissue.
Answer:
C
Explanation:
All of the other answers would lead to the oxygen not being stable.
