Match the following characteristics to the fossil of the once-living organism that best demonstrated the characteristics

Explain why scientists use the word dominant for certain traits.

Hairs that clean dirt out of the air in your nasal passages are called: a. sinus b. trachea c. cilia d. mucus

Mulitple choice which of the following is a function of the nucleus? a. stores dna b. stores sugars c. builds proteins d. packages proteins