What is the likely cause of the blockage in the following scenario?
A plumber, cleaning out recently blocked lines, indicates that there are roots blocking the sewer system. There are no trees immediately
over the sewer line and have not been for years, there is only a small group of trees on the side of the property, several yards from the
line.
taproots
O primary roots
O aerial roots
O lateral roots

Fill in the blank 1. digestion occurs in the small intestine through the action of enzymes. 2. urea, excess water, and other waste materials are eliminated in a water fluid called 3. can cause infections by injecting dna or rna into hosts. 4. the human immune system produces in response to a vaccine, which later can bind to and destroy a pathogen if it invades. 5. are structures that link bone to bone at a joint 6. in the heart, blood flows from the right atrium to the right ventricle, where it is pumped to the the words i can use are: lymphocytes gliding pivot gas urine absorption dermis fulcrum lungs chemical viruses capillary vertebrae esophagus tendons antibodies synapses ligaments kidneys pathogens