in order for cells to carry out the functions needed to sustain life, which of the following must be present in the cell? a cell wall b nucleus c dna and or rna or d flagella which of the following must be present in the cell? a cell wall b nucleus c dna and or rna or d flagella

Each trait of a plant is determined a. an allele b. one gene c. a pair of genes d. one dominant gene

Put the following steps of the convection process in the correct order. 1. gravity pulls cooler matter downward. 2. the matter expands and decreases in density. 3. an up-and-down flow of matter produces a convection current. 4. matter is heated. 5. warmed matter is forced upward. question 2 options: a) 4, 2, 5, 1, 3 b) 2, 4, 3, 1, 5 c) 3, 2, 5, 4, 1 d) 1, 4, 2, 5, 3

Predict the results of a two base insertion or deletion in a strand of dna that codes for a protien, how does this differ from a three base insertion or deletion?