The bivalves started to die one by one; only the undamaged shells remained. To keep the remaining bivalves alive, the teacher would most likely need to remove the _____
A) sea anemones
B) sea star
C) gastropods
D) ectoprocts
B
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True or false: By the time the filtrate leaves the proximal convoluted tubule, about 75% of the water and most of the electrolytes and solutes have been reabsorbed into the bloodstream
A. true B. false
Which statement is true about the structure of DNA?
A) It is a polymer made up of a string of amino acids. B) Each different sequence folds into a different three-dimensional shape. C) The two strands of a DNA molecule are held together by base pairing. D) It contains nitrogenous bases known as A, C, G, and U.
The only antibody that can cross the placenta from mother to fetus.
What will be an ideal response?
Some cyanobacteria form ________, which are comprised of chains of bacterial cells that are in close contact with one another over a large area.
A. cell mats B. mycelia C. trichomes D. hypha