Question

question 18 (1 point) only plant cells can use light energy to build sugar molecules. true false question 19 (1 point) which statement best compares the complexity of prokaryotic and eukaryotic cells? a eukaryotic cells have nuclei and more membrane - bound organelles than prokaryotic cells. b prokaryotic cells have thicker cell walls surrounding their nuclei than eukaryotic cells. c prokaryotic cells have the same amount of cytoplasm as eukaryotic cells but far less dna. d eukaryotic cells have dna suspended in the cytoplasm and prokaryotic cells have dna in a nucleus. question 20 (1 point) what is the last step of the scientific method? a experiment b hypothesis c data d conclusion

Explanation:

Question 18

Some bacteria (prokaryotes) can perform photosynthesis (use light energy to make sugars), so not only plant cells can do this. Thus the statement is false.

• Option a: Eukaryotic cells have a nucleus and membrane - bound organelles (like mitochondria, ER), prokaryotic cells don't. This correctly compares complexity.
• Option b: Prokaryotes don't have a nucleus, so this is wrong.
• Option c: Prokaryotic cells are generally smaller, so less cytoplasm, and DNA amount comparison is wrong.
• Option d: Prokaryotes have DNA in cytoplasm (nucleoid), eukaryotes in nucleus. This is reversed.

The scientific method steps are: ask a question, form hypothesis, experiment, collect data, analyze, draw conclusion. The last step is conclusion.

Answer:

False

Question 19