Answer:
the answer is D, they both develop calcium carbonate structures
Explanation:
Answer:
Many evolutionary changes resulted in the transition of aquatic vertebrates into terrestrial organisms. Some of these are:
In terrestrial organisms, the respiratory system is more complex and enhanced than the aquatic vertebrates. For instance, the early amphibians had gills for respiration. But with the passage of time, lungs appeared which made life on land more feasible.
The formation of rigid and insulated body coverings also was an adaptation that emerged for making life feasible on land.
Limbs allowed movement on land. With the passage of time, feet developed from the limbs.
Sycamore trees (Platanus occidentalis) make handsome shade trees for large landscapes.
Answer:
Saturated fatty acids have all of their carbon atoms bonded to hydrogen atoms.The lipids containing saturated fatty acid are solid at room temperature
Unsaturated fatty acids have some of their carbon atoms double bonded in place of hydrogen atoms.The lipids containing unsaturated fatty acids are liquid at room temprature.
Explanation:
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