The thick fur of a polar bear is an adaptation that allows the bear to live successfully in its environment. t or f

Dna is colied into chromosomes in a cell

2. how does the miller-urey experiment fall short of demonstrating that life can arise from inorganic molecules? explain. a. it doesn't show a leap between a collection of amino acids and a single-celled organism. b. it recreates the conditions that existed at the earth's beginning, but no molecules form as a result. c. it doesn't provide evidence of the formation of amino acids. d. it doesn't show how multicellular organisms developed from unicellular organisms

Explain the source of radioactivity in uranium in earth’s crust by which it produces nuclear radiation