Saturated fatty acids are chains of single bonded carbons surrounded by hydrogen atoms.
Unsaturated fatty acids have bent structures due to double bonding between carbon atoms in the chain. When carbons create double bonds with each other they are no longer able to hold as many hydrogens as a saturated fatty acid
<span>Aerobic cellular respiration uses oxygen and yields many more ATP molecules than anaerobic cellular respiration, which does not use oxygen and yields only 2 ATP molecules. There are three stages in the process of transforming glucose to ATP: glycolysis, the citric acid cycle, and the electron transport chain.</span><span>
</span>
Answer: color, cleavage, clarity, durability, and crystal system
Explanation: color - distinctly green color that ranges between bluish green and slightly yellowish green.
cleavage - one direction of imperfect cleavage
clarity - almost every natural emerald has eye-visible characteristics that can be inclusions, surface-reaching fractures, or healed fractures. Treatments to fill the fractures with oils, waxes, polymers, flux and other materials to reduce their visibility has been common practice for hundreds of years.
durability - emerald is very hard, but almost all specimens have inclusions and surface-reaching fractures that compromise their durability
crystal system - hexagonal
A trophic level is each step in a food chain that demonstrates the transfer of energy.
A trophic level is any feeding level in a food chain through which energy in the form of food is transferred in an ecosystem. A food chain contains five main trophic levels which are; (i) primary producers (autotrophs; plants and algae), (ii) primary consumers (herbivores), (iii) Secondary consumers (carnivores and omnivores), (iv) Tertiary consumers (carnivores and omnivores) and (v) Apex predators.
