B. j., a 70-year-old black female has been seen in the clinic several times. the last time she was in for a check-up was 6 months ago to get her prescriptions refilled. she has returned to the clinic today because she "ran out of blood pressure medicine" and would like to get her prescriptions renewed. she has not taken any prescription medicine in approximately 6 months background: the patient indicates that she has noticed shortness of breath, especially when she is playing with her grandchildren. but, it goes away once she sits down to rest. she reports that she is also bothered by shortness of breath that wakes her up at night, but it resolves after sitting upright on 3 pillows. she also tells you that "i noticed over the last week that my legs and ankles have been swollen". she also indicates that she often feels light headed and faint while going up the stairs, but it subsides after sitting down to rest.

Ahypothesis that has been tested again and again , with similar results each time may become a law , true or false

The diagram below represents a marine food web and a process that can harm the human population. each circle represents an organism and the smaller dots inside them represent a toxic substance. what is being represented and how does it harm the population? the diagram represents biological half-life, in which toxins build up in organisms higher up on the food chain, and this can negatively impact humans who consume the organisms and the toxic substance. the diagram represents biomagnification, in which toxins build up in organisms higher up on the food chain, and this can negatively impact humans who consume the organisms and the toxic substance. the diagram represents the process by which different organisms prey upon each other; this can impact the human population by reducing the number of organisms that do not contain the toxin. the diagram represents the way that toxins are metabolized by living organisms, with those at greater trophic levels able to metabolize more efficiently than those at lower levels. this means that those at higher tropic levels are safer for humans to consume compared to the organisms at lower trophic levels.

Once an egg cell is fertilized by sperm, the cell then, as the embryo develops, it receives nourishment and eliminates wastes by transferring substances from its blood to its mother's blood. a. becomes a fetus immediately and exits the womb b. begins to divide and implants itself in the wall of the uterus c. remains in the uterus without dividing for several months d. travels back to the ovaries until the fetus is developed