The urinary bladder stores urine. The walls of the bladder can shrink and stretch. When the bladder is full, the muscles will
contract to empty the bladder. The urine is then released into the
urethra, which is a tube that carries urine from the bladder to the
outside of the body.
Which two body systems work together to carry out the process described in the passage?
A.
immune
B.
nervous
C.
muscular
D.
excretory
EU
respiratory
F
cardiovascular

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.