Look at the following diagram of the carbon cycle. Which part of the carbon cycle is represented by arrow C to A?

Decomposition

Plant emissions

Plant respiration

Photosynthesis

Where in the cell are ribosomes made?

Abird flies by moving its wings up and down. which two systems are most directly responsible for the movement of a bird's wings? a. skeletal and muscular systems b. respiratory and muscular systems c. skeletal and digestive systems d. respiratory and digestive systems

Rna primer constructed during dna replication needs to be replaced because rna differs from dna. it contains ( adenine, cytosine, uracil ) instead of ( adenine, guanine, thymine ).