Which of these is a function of the circulatory system?
transport of oxygen
digestion of food
production of hormones
reflex response

transport of oxygen. Circulatory system transports oxygen to different parts of the body through red blood cells. Digestion of food is not the right answer because it is the role of the digestive system. The endocrine system facilitates production of hormones and reflex response is made possible by the nervous system, so the last two are also not the right answers.

1. true.2. true.3. true.4. false.5. true.the concept of darwin's theory of evolution involves the idea that there are limited resources in a given living environment and that the organisms which live within have variations in their genetic make up due to random mating. the ones with beneficial genetic variations can express certain traits which give them an upper hand in surviving and reproducing in the said environment compared to ones who may have a more disadvantageous variation in traits. over time, the organisms with an upper hand will survive and reproduce more frequently and pass on their beneficial genes while the others die. the result is evolution, where we observe (usually, but not always) eventually, phenotypic distinct changes.

Ithink it’s c or b for the answer.