Answer:
Cell division is simpler in prokaryotes than eukaryotes because prokaryotic cells themselves are simpler. Prokaryotic cells have a single circular chromosome, no nucleus, and few other cell structures. Eukaryotic cells, in contrast, have multiple chromosomes contained within a nucleus, and many other organelles.
Explanation:
Excreting urea helps in maintaining internal homeostasis by retaining water.
The mammals like humans excrete urea, while reptiles and birds, and some terrestrial invertebrates generate uric acid as waste. Generating uric acid in place of urea is beneficial as it is less toxic and diminishes water loss and the subsequent requirement for water.
This retention of water helps birds and reptiles to sustain internal homeostasis mainly in hot weather.
Warm moist air hits cool dry air!
Do not use water, alcohol or acetone as the oil is insoluble to these solvents. To remove other oily substances, i recommend using the detergent called Wisk and prepare a solution of 1 part Wisk to 100 parts water I usually use it . Hope it helps
B. Tree rings and C. Ratio of c-12 to c-14 in a bone sample