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biologists in louisiana have become concerned about cadmium levels in the water near new orleans and the probability that
frogs will die out. they performed an experiment on bullfrog tadpoles to determine how toxic cadmium is to bullfrogs.
suppose a small river with a population of 10,000 frogs becomes polluted with cadmium to a level of 3 mg per gallon per day.
about how many bullfrogs would be expected to die?

Which blood cell spend most of their time in the lymphatic system?

What are the two causes of density in deep current waters? a. salinity (how much salt) of the water and high temperaturesb. salinity (how much salt) of the water and low temperatures c. oxygen content of the water and high temperatures. d. oxygen content of the water and low temperatures

Label the steps for protein synthesis in order, beginning with the first steponce the protein is made, the gene for a particular trait is expressedmrna joins the ribosome, and the anticodons from trna join mrna to form a chain ofamino acidsrna polymerase unzips dna and free rna nucleotides join dna to form mrnav a chain of amino acids is formed from peptide bonds, creating a proteinmrna is transported from the nucleus of the cell to the ribosomes of the cell.