91Ó°ÊÓ

The given data is listed below,

• Percentage of water content in biological tissues is$98\%$.
• The density of water is, ${\mathrm{ÒÏ}}_w=1.0×{10}^3\mathrm{kg}/{\mathrm{m}}^3$.
• The diameter of the cell is, $D_c=0.5\mathrm{μ}\mathrm{m}\left(\frac{{10}^{-6}\mathrm{m}}{1\mathrm{μ}\mathrm{m}}\right)=0.5×{10}^{-6}\mathrm{m}$.

The Objects have mass as they are made up of atoms, and atoms have mass as they are made up of fundamental particles- Protons, Electrons and Neutrons. Mass is a fundamental property of matter due to which a body undergoes gravitational interactions.

The size of the human heart can be estimated roughly as the size of a fist.

Assume its volume is $(2\text{in}{)}^3=8{\mathrm{in}}^3$

Mass of human heart is given by,

Here, $\mathrm{ÒÏ}$ is the density of water and $V$ is the volume of the heart.

Substitute values in the above expression and using the information that $98\%$ of the biological tissue is made up of water,

Thus, the mass of a human heart is estimated as $128.5\mathrm{g}$.

Assume the cell as a sphere and therefore the volume of the cell is given by,

Here, $r$ is the radius of the sphere.

Substitute values in the above,

The mass of the cell is given by,

Here, $\mathrm{ÒÏ}$ is the density of water and $V$ is the volume of the cell.

Substitute values in the above and using the information that $98\%$ of the biological tissue is made up of water,

Thus, the mass of a cell is estimated as $6.41×{10}^{-14}\mathrm{g}$.

Let the honeybee as a cylinder. and assume the length of the cylinder is $1cm$and the radius is $3\mathrm{mm}$.

The volume of a cylinder is given by,

Here, $r$ is the radius of the cylinder whose value is assumed as $1\mathrm{cm}$ and $l$ is the length of the cylinder whose value is assumed as $3\mathrm{mm}$

Substitute values in the above,

The mass of the honeybee is given using the information that $98\%$ of the biological tissue is made up of water,

Thus, the mass of the honeybee will be $2.77\mathrm{g}$.