Which information in the periodic table indicates the number of protons in an atom?

the position of the element in its column

the element's atomic number

the element's chemical symbol

the element's atomic mass

Which lettered structure is responsible for the excretion of most cellular wastes

True or false: power is work done over a distance

How do the chromosomes in a sex cell differ from those in a body cell

Molecular data can be used to assess relationships among the major groups of living organisms whose common ancestors lived millions or billions of years ago. Similar techniques can be used to assess relationships among populations within a species.

What is the physical state of DNA after being denatured by heat? A. individual bases, sugars, and phosphates B. double-stranded C. individual nucleotides D. single-stranded E. isomerization

Which of these vessels returns blood to the left atrium of the heart? A) pulmonary veins B) coronary sinus C) superior vena cava D) pulmonary trunk

Prokaryotes replicate and form two identical daughter cells using a process called

Because digital signals do not depend on amplitude or frequency differences to communicate information, they are more vulnerable to emi noise.

What are some characteristics of nervous tissue?

What enzyme is responsible for adding nucleotides to a growing DNA chain during replication