Which of the following cells shows the presence of a nucleus?
prokaryotic cell
eukaryotic cell
both prokaryotic and eukaryotic cell

How do diseases caused by bacteria and diseases caused by viruses react to antibiotics?

How do water’s relative densities as a solid and a liquid differ from that of most other substances? water’s solid and liquid forms have different densities, while most other substances have solid and liquid forms with similar densities. water’s solid and liquid forms have similar densities, while most other substances have solid and liquid forms with different densities. water’s liquid form is less dense than its solid form, while the opposite is true of most other substances. water’s solid form is less dense than its liquid form, while the opposite is true of most other substances.

Why do mountaineers become breathless as they reach high altitudes