Question: Which is the simplest self-replicating entity that can exist as an independent unit of life?

Answer: A Cell

Question: It was not enclosed in a plasma membrane

Answer:

Question: algae, liver cells, yeast, bacteria

Answer: All of these have plasma membrane

Question: A certain cell has a membrane-enclosed nucleus. The cell’s ribosomes are outside the nucleus in the cytosol. In this cell, can translation of a transcript occur at the same time that the transcript is being synthesized?

Answer: No

Question: In a prokaryotic cell, DNA is not separated from other cellular components (including ribosomes) by membranes. In this cell, can translation of a transcript occur at the same time that the transcript is being synthesized?

Answer: Yes

Question: A cell contains mRNAs with polyadenylate tails. What kind of cell is it?

Answer: Eukaryotic

Question: it can be tested by new observations or experimental data,

it’s a proposed explanation for an aspect of the natural world, it can be used to make predictions

Answer: In the biological sciences, all of these are features of a hypothesis

Question: What is not a feature of a Hypothesis?

Answer: It is an educated guess

Question: In the biological sciences, other than being a broad explanation for an aspect of the natural world, what feature of a hypothesis makes it rise to the level of a theory?

Answer: it has been overwhelmingly supported by observational and experimental evidence accumulated over a long time span

Question: True

Answer: True or false: A tentative, testable explanation based on observation is referred to as a hypothesis.