A 54-gram sample of an unknown material has a volume equal to 20 cm3. What is the identity of the substance?

How does the accuracy of a calculation depend on the number of significant figures in the measurement used to do the calculations?

During the carbon cycle, which type of organism is involved when carbon is transferred from the biosphere to the lithosphere (geosphere) ?

You have been tracking a population of birds in the jungle and over several generations observed the following genotype frequencies for a given locus, B : 12% BB, 28% Bb, and 60% bb.

The main result of respiration is the (a) conversion of light energy into chemical energy (b) building of muscles (C) storage of energy (d) production of energy from the breakdown of food

A column of information that is gathered from an expierment is called?

Explain the relationship between the Earth's crust and the Earth's ocean sizes.

Why is there a gap or synapse between the nerve endings why can't itbe joined to the other nerve?

In some kinds of organisms, reproduction occurs asexually which means what about the parents and offspring DNA?

Tess has second - and third-degree burns on her arms and face. explain why the burns that tess suffered make her very susceptible to infection.

Which of these cell structures convertss nutrients to energy for cell functions?