This organelle serves to process and package lipids and proteins in the cell.

g What are the differences between prokaryotic and eukaryotic gene expression? Regulation of transcription is identical in both. Prokaryotes do not use promoter sequences. 5' capping and 3' polyadenylation of mRNA occurs only in eukaryotes.

The need for energy, gained by respiration and photosynthesis, is the driving force of the oxygen cycle.

Why are c4 plants more efficient photosynthesizers than c3 plants?

Kevin wants to lower his carbon footprint. What option should he choose?

A specific mutation in a certain animal leads to abnormal development of the heart and kidney, resulting in miscarriage.

Which of the following is true about critical analysis of promotional claims? a. It is necessary because consumers generally do not need to purchase goods. b. Advertisements intend to mislead consumers about the goods they portray. c.

Why does my skin itch after i take off my socks?

Is an octopus a invertebrate chordate

Birds and reptiles are both vertebrates that lay eggs but birds have beaks and reptiles have teeth. Occasionally birds have teeth but only in the embryonic stage. Which conclusion is best supported by the presence of teeth in bird embryos? A.

What were Charles Darwin's observations?