The oxygen level of a lake suddenly starts decreasing. a biologist believes that photosynthetic organisms in the community have become less efficient at producing oxygen. a geologist believes that changes in the ground have increased the inflow of water into the lake. why are both of these options valid scientific hypotheses?
scientists with different educational backgrounds can come to different interpretations of the same data.
both scientists have graphs and charts to support their hypothesis.
both are valid because they are supported by experimental data
both scientists underwent the same training and, therefore, have equally valid scientific hypotheses regardless of the available data.

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