This pedigree supports the fact that the widow's peak is due to a dominant allele, because if it were due to a recessive allele and both parents show the recessive phenotype, then . none of the sons would have a widow's peak none of the sons would have a widow's peak all of the daughters and none of the sons would have a widow's peak all of the daughters and none of the sons would have a widow's peak none of the daughters would have a widow's peak none of the daughters would have a widow's peak all of the offspring would have a widow's peak

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