Answer:

Explanation:
Given that,
The mass of a sample, m = 16.7 grams
Volume of the sample, V = 4.4 cm³
We need to find the density of the metal sample.
Density = mass/volume
Substituting all the values,

So, the density of the metal sample is
.
Nutrients is what is absorbed through the small intestine
Some have a 30 yr life span but others have little as ten months
it all depends on the region of which it lives
Answer:
1.Plasma membrane is a semi permiable layer present in a plant cell.it allows only selected substances to pass in and out of the cell.