Use the letters A through G to place the following steps of the life cycle of mosses in order, beginning with the production of spores. A spores land on soil and germinate into thin, threadlike, green structures
B small gametophytes grow along threadlike structure
C male sex cells swim to female sex cells
D spores produced by meiosis in sporophyte
E zygotes develop into new sporophytes
F gametophytes produce sex cells
G sex cells unite to form diploid zygotes

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