Which of the following organic molecules contains a free carboxyl group on its hydrolysis ?

1-Phospholipids and polysaccharides.

2-Phospholipids and proteins.

3-Polysaccharides only.

4-Proteins only.

An organism has the following traits multicellular cant photosynthesize has a skull. wht kingdom does this organism most likely belong too?

Compare and contrast region e in the illustration above with region d. describe the physical characteristics of each region.

Which phrase is the best summary of the model shown? a. the transfer of the sun's energy through trophic levels b. a series of aerobic and anaerobic reactions c. a transformation of light energy into chemical energy d. the breakdown of food molecules