Answers: 3
Biology, 21.06.2019 15:00, wileycheyennem
The images show fossils of a modern bird and two extinct organisms (a tyrannosaurus rex and an archaeopteryx). based on the structure of the three organisms, it can be concluded that . the archaeopteryx and bird have wings, while dinosaurs have limbs. so, it can be concluded that .
Answers: 1
Biology, 21.06.2019 21:30, lkipjjjjjjjjjj5673
What was dr. willem johan kolff’s first step in using the scientific process to invent the hemodialysis machine? he built the machine and tried it with various patients, collecting data about its effectiveness. when a patient’s kidneys failed, he wondered if it would be possible to perform kidney functions with an external machine. he researched and collected data about numerous patients who exhibited symptoms of kidney failure. he drew conclusions from studies of various symptoms of kidney failure, and drew a design for the ideal external blood-processing machine.
Answers: 1
Biology, 22.06.2019 09:00, nireegnu
The current thought on the structure of the cell membrane is: a. a static phosphate sandwich of lipids b. a fluid-mosaic of phospholipids and proteins c. a bilayer of proteins with static lipid molecules d. an impermeable bilayer of protein molecules e. a static and permeable phospholipid single layer
Answers: 2
Biology, 22.06.2019 09:30, natalie0908
Describe your dna model. which part do the straws represent? the pushpins? the paper clips and the black dots you made with the marker?
Answers: 1
Cual es la forma mas simple de materia en la naturaleza...
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