Galaxies whose shape seems to follow no set pattern are classified as
a. irregular.
b. spiral.
c. barred spiral.
d. elliptical.

How do living things obtain phosphorus

Describe the structure of amino acid, including what makes amino acids different from eachother

Mattias scheiden and theodor schwann studied plant and aniaml cells under a microscope.together these men concluded that plants and aniamals are made up of cells, which scientist furthered their study to complete our mordern cell theory