Some students used vinegar to dissolve away the shells of three eggs to
represent animal cells. The students observed the changes in the eggs
when they were placed in different solutions,
Which statement best describes the importance of the cell membrane?
a.) the cell membrane allows solutes to enter the cell, but not water
b.) the cell membrane removes solutes from the cell and into the environment
c.) the cell membrane allows the cell to maintain homeostasis
d.) the cell membrane is a protective barrier that prevents water from entering the cell
Answers: 3
Biology, 22.06.2019 10:40
Which of the following is a period in the paleozoic era? devonian cambrian permian all of the above
Answers: 1
Biology, 22.06.2019 13:00
Substances that can pass through cell membranes by diffusion include a. na ions. b. proteins c. glucose. d. oxygen.
Answers: 3
Biology, 22.06.2019 20:00
Ascientist discovers a new body between the orbit of neptune and the kuiper belt. the object is round and travels in an orbit around neptune with other space objects. the scientist claims that she has found a new dwarf planet. where is the scientist’s error? the object is an asteroid, not a dwarf planet.the object is a moon, not a dwarf planet.the object is not a dwarf planet because it travels with other objects.the object is not a dwarf planet because it is round.
Answers: 1
Biology, 23.06.2019 01:00
Compare the lunar phase of the waning crescent to the waxing gibbous. the waning crescent is increasing in illumination and the waxing gibbous is decreasing in illumination. the waning crescent is decreasing in illumination and the waxing gibbous is increasing in illumination. the waning crescent is more than half illuminated and the waxing gibbous is less than half illuminated. the waning crescent is more than half illuminated and the waxing gibbous is more than half illuminated.
Answers: 3
Some students used vinegar to dissolve away the shells of three eggs to
represent animal cells. The...
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