What is difference between respiration and photosynthesis?

Respiration is a vital process carried out by the human being where he breathes oxygen gas and emits carbon dioxide .. As for the photosynthesis process, it is a process by which plants produce oxygen gas and absorb carbon dioxide.

unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.

i believe it's c. the trait for large beaks will be passed on to future generations through natural selection.

since eventually smaller beaks would have to find another source of food or even eventually just die out from the lack of food.