Tongue rolling dominant or recessive

Question 3(multiple choice worth 4 points) (02.04 lc) which best describes the function of chloroplast? allows certa molecules to enter and exit the cell makes food during photosynthesis detoxifies waste products o packages proteins into vesicles

What element is able to combine with itself and hydrogen to form large molecules ?

Which of these is not a nucleotide base found in dna?