wrecking crew: old building:: lysosome: damaged organelle.
A lysosome is an organelle that contains enzymes that break down and digest unneeded cellular components, such as a damaged organelle.
The defecation reflex involves two postive feedback loops. these loops are the stretch receptors in the rectal walls and the sacral parasympathetic system. Defecation reflex empties the rectum by peristaltic movements push fecal matter from the sigmoid colon into the rectum. Then this distension of the rectal walls stimulates stretch receptors which results in defecation.
You know that there is a difference between plant cells and animals cells. The plant cells have a cytoplasm while the animal cells do not. Therefore the answer must be C.
Answer:
According to the BBC, Saber-tooth cats went extinct roughly 10,000 years ago and it is suggested that their closest living relative might not be the tiger or the lion, but the clouded leopard. The saber-toothed salmon is another animal that is extinct but there are some still alive today: walrus; musk deer and warthogs.
Explanation: