Which of the following best describes a tissue? Group of answer choices

A group of organs that all have similar functions.

A group of similar cells that serve the same purpose

A random collection of cells.

A singe cell that has a specific function.

In dna, only the_ varies from one nucleotide to another. base phosphate sugar amino acid

What are two reasons for why a species might disappear from the fossil record?

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