Particles are displaced perpendicular to motion (up and down) in which kind of
wave?

Transverse
Or
Longitudinal

What is the inability of an individual or a society to achieve a minimum standard of living known as ?

Select the correct answer. what does the hardy-weinberg principle relate to? a. chances of survival of an organism b. frequency of alleles in a population c. natural selection in a species d. causes of evolution among organisms

Which muscle cell structure stores calcium ions that are used to trigger the contraction?