Question

1. despite differences in size and shape, at some point all cells have dna and a

a. cell wall. c. mitochondrion.
b. cell membrane. d. nucleus.

Explanation:

All cells (prokaryotic and eukaryotic) have DNA and a cell membrane. Cell walls are only present in some cells (like bacteria, plants, fungi, not animal cells). Mitochondria and nuclei are only found in eukaryotic cells, not prokaryotes.

Answer:

b. cell membrane.