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respiratory and circulatory digestive and excretorydigestive and circulatory nervous and muscular

Taking in gasses and moving them through the body is respiratory and circulatory

Processing nutrients and expelling waste from the body is digestive and excretory
Taking in nutrients and moving them through the body is digestive and circulatory

Processing and responding sensory informations is nervous and muscular

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.

Yes, take risk in life