Biology, 23.02.2021 16:50 jaymieordonez8751
Look at the picture. What does it represent? https://www. savvasrealize. com/community/proxy/assessment/5d06 f8c54eec494ca75c4bc729b9db97/images /6b190a2b-c906-44ab-a086-3263ff1286 cf
choose two correct answers:
A. Differentiation is the process by which cells become specialized.
B. The outer cells of the blastocyst become the embryo.
C. The inner mass of cells of the blastocyst will form the specialized cells in the body.
D. Specialized blastocyst cells become stem cells in the adult.
Answers: 2
Biology, 22.06.2019 14:00
Some substances but not other can cross the (blank) membrane of a cell
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An uncomfortable feeling in the ears when descending in an airplane is caused by changes in air pressure on the: a. inner ear b. middle ear c. eardrum d. hammer/anvil
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Biology, 23.06.2019 00:10
1. beginning with all chambers of the heart in the "relaxed" phase, describe the cardiac cycle in mammals, with systole and diastole of the atria and ventricles. for each time point in the cycle you select, state the following: • whether the atria and ventricles are contracting or relaxing • whether the av valves and semilunar valves are closed or open • whether the pressure in the atria and ventricles is high or low
Answers: 2
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