Question

1. which of the following statements is not part of the cell theory?

a cells come from existing cells.
b living things must contain one or more cells.
c the cell is the basic building block of living things.
d cells have at least one nucleus, which contains dna.
4.the chart below compares the characteristics of three different cells.

organelle	cell a	cell b	cell c
chloroplast	absent	absent	present
nucleus	present	absent	present
flagella	present	present	absent
large vacuole	absent	absent	present
ribosomes	present	present	present
cell membrane	present	present	present

which cell most likely represents an animal cell?
a cell a
b cell b
c cell c

Explanation:

1. For the cell - theory question: The cell theory has three main points: all living things are made up of one or more cells, the cell is the basic unit of life, and cells come from pre - existing cells. The statement about all cells having at least one nucleus is not part of the cell theory as prokaryotic cells do not have a nucleus.
2. For the cell - type question: Animal cells do not have a cell wall, chloroplasts, or a large central vacuole. Cell A has no cell wall or chloroplast and no large vacuole, which are characteristics of an animal cell. Cell B is likely a prokaryote or a fungal cell (no nucleus) and Cell C is likely a plant cell (has cell wall, chloroplast, and large vacuole).

Answer:

1. D. Cells have at least one nucleus, which contains DNA.
2. A. Cell A