Cell membranes are structured so that molecules can pass in and out of the cell across them. while both plant and animal cells have membranes, plant cells also have cell walls surrounding their cells. which of the following observations best supports the conclusion that molecules can cross cell walls as well? a) every cell has its own nucleus. b) the chloroplast need light in order to work. c) the cell wall is directly outside the cell membrane. d) water from the soil is used during photosynthesis.
Answers: 1
Biology, 21.06.2019 23:10
Drag the correct tiles to the image. not all tiles will be used. the diagram is a schematic representation of the electron transport mechanism in mitochondria. label the diagram to complete the model.
Answers: 3
Biology, 22.06.2019 05:20
The mammal pictured below is a silvery mole rat. which statement is an inference based on the picture? the animal is ugly. the animal has hairless feet with sharp claws. the animal has prominent upper and lower incisor teeth. the animal likely has poor vision since its eyes are so small.
Answers: 2
Biology, 22.06.2019 07:00
Diabetes is often suspected when glucose shows up in urine tests. use the model to explain how glucose could be present in urine. why do you think this symptom is especially concerning for young people?
Answers: 2
Biology, 22.06.2019 13:00
Land conservation is a worldwide priority. there are several methods to prevent the loss of land due to a variety of reasons. which method is not a way to conserve land? a) sea walls b) rainwater harvesting c) limits on clear cuts of forests d) cut and burn methods of clearing land
Answers: 1
Cell membranes are structured so that molecules can pass in and out of the cell across them. while b...
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