Duckweed are small aquatic autotrophs that float in the water. they live in freshwater and wetlands. in which kingdom would you place them? plantae protista animalia

1. describe the structure and function of the specialized cells you observed in the video. 2. research the types of cells present in the kidney.

Which of the following is not a type of epithelial cell

According to the rna world hypothesis, rna acted as the genetic material and catalyzed reactions in ancient cells. what conclusion can you draw from this?               a.  this implies that dna and proteins aren't essential in cells today.    b.  this implies that rna can catalyze any chemical reaction that enzymes catalyze.    c.  this implies that if a cell has a problem with its dna, its rna can compensate for the damaged dna.    d.  this implies that dna and proteins evolved after rna.