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camilaaa345 Group Title

During winter's freezing temperatures, some plants can remove water from their cells to reduce the amount of water that will freeze inside them. Why would plants need to do this?

  • 2 years ago
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  1. bronzegoddess Group Title
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    grapes do this for example, because if the water forms crystals it will tear its membranes there killing its cells.

    • 2 years ago
  2. camilaaa345 Group Title
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    wait i have the choices As the water contracts during freezing, the cells would pull away from each other causing damage. Less water in the cells means the cells are smaller and need to do less work. The expansion of excess water as it turns to ice inside the cells would break the cells apart. The frozen water constricts organelles and causes plant cells to shrink

    • 2 years ago
  3. bronzegoddess Group Title
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    the expansion of excess water as it turns into ice inside the cell would break the cells apart.

    • 2 years ago
  4. camilaaa345 Group Title
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    do you know this one?

    • 2 years ago
  5. camilaaa345 Group Title
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    Which of the following lists correctly summarizes the main functions of proteins in the human body? Answer Energy storage, structural support, providing insulation, enzyme production, and signaling Hormone production, energy storage, antibodies development, and control of metabolic functions Providing insulation, powering movement, providing defense, and storage of genetic code Powering movement, structural support, hormone production, antibody and enzyme production

    • 2 years ago
  6. bronzegoddess Group Title
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    the first one sounds the most likely to me, I dnt knw any proteins that produce hormones but I am sorry because am not too sure :(

    • 2 years ago
  7. camilaaa345 Group Title
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    its okay thank you do you happen to know this one? In 1838, Matthias Schleiden published his observation that plant tissues are composed of cells. A year later, Theodor Schwann published evidence that animal tissues were composed of cells. If Schwann did not publish his findings, then which question regarding cell theory would have remained unanswered? Answer Are plants and animals created from inorganic matter? Are plants and animals fundamentally different? Do plants and animals differ in how they obtain energy for life processes? Do plants and animals pass on their DNA during reproduction?

    • 2 years ago
  8. bronzegoddess Group Title
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    the cell theory states that: All living things or organisms are made of cells and their products. New cells are created by old cells dividing into two. Cells are the basic building units of life. So c would be the most likely because energy processes occur in the cells :) you are welcome, its helping study for exams lol

    • 2 years ago
  9. camilaaa345 Group Title
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    Jason and Matt have developed a new computerized timer for recording race times. Which of the following would be the best way to confirm the timer's accuracy? Consistent testing conducted by a single person First-person testimony from a variety of racers Independent testing, repeated in multiple trials Multiple publications of data in a wide range of media

    • 2 years ago
  10. bronzegoddess Group Title
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    c

    • 2 years ago
  11. camilaaa345 Group Title
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    Cells use ATP as a source of energy to carry out various functions within the cell. In order for ATP to be useful, a chemical reaction that converts ATP to ADP occurs, releasing energy. Which of the following changes in cellular conditions do you predict would cause a decrease in energy production for the cell? A lack of water molecules in the cell’s mitochondria A large quantity of oxygen in the cell’s mitochondria An abundance of ADP molecules in the cell An increase in temperature of the cell’s surroundings

    • 2 years ago
  12. bronzegoddess Group Title
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    water molecules are produced so they wont affect ATP production, and oxygen and ADP are needed to make ATP so none of those, so d is your answer

    • 2 years ago
  13. camilaaa345 Group Title
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    In an ecosystem, a wide range of organisms coexist. In a pond ecosystem, one can find amoebae, bacteria, green algae, and fish. Which of the following is the best conclusion one can make regarding the genetic diversity of these organisms? Amoebae will have the greatest genetic diversity because their genetic makeup allows them to survive in many environments. Bacteria will have the greatest genetic diversity because their high reproductive rate ensures that some will survive. Green algae will have the greatest genetic diversity because they are photosynthetic and do not depend on other organisms to survive. Fish will have the greatest genetic diversity because they receive genetic material from a male and female source.

    • 2 years ago
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