It is not common, but I have encountered cases where a dog or cat is given a needle (any type of needle, including a vaccine) and then keeps on bleeding from the site of injection. A huge bruise or blood-filled lump (called a hematoma) may even develop on the skin at the injection...
True or False: A bruise is caused by leakage of blood out of damaged vessels and into tissues. If the answer is false, rewrite the question so that it is true. E(system)+E(surroundings)=0. True or false? Are jet engine exhaust fumes da...