A) cell walls prevent heat from escaping
B) cells concentrate molecules together so they react more easily
C) only cells can replicate
D) biological reactions can occur only within cells
B) cells concentrate molecules together so they react more easily
C) only cells can replicate
D) biological reactions can occur only within cells
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Well, we're talking EARLY life, right? Think about a newly fertilized egg cell, which now has half of the father's DNA and half of the mother's DNA in it. Which of the above reasons do you think would be the most important to such a cell?
A is wrong because cell walls are only found in plants and do not prevent heat from escaping. If we're talking about mammals, the uterus of the mother is plenty warm. If not, then heat is not an issue for higher plants or cold-blooded animals.
B.Cell reactions are controlled by enzymes within the cell, not the concentration of molecules squashed together.
C. Ah..now we're talking. This is a brand new fertilized cell, which must replicate in order to grow into the fetus or infant plant that new life needs, and this is purely a cellular function.
D. This is wrong because biological reactions can occur outside of the cell, in the body tissues, as well.
Your answer is C, but I wanted you to know why. As a retired teacher, I need to explain things so you understand why this answer is right and the others are not and not just give you a letter. That teaches you nothing.
A is wrong because cell walls are only found in plants and do not prevent heat from escaping. If we're talking about mammals, the uterus of the mother is plenty warm. If not, then heat is not an issue for higher plants or cold-blooded animals.
B.Cell reactions are controlled by enzymes within the cell, not the concentration of molecules squashed together.
C. Ah..now we're talking. This is a brand new fertilized cell, which must replicate in order to grow into the fetus or infant plant that new life needs, and this is purely a cellular function.
D. This is wrong because biological reactions can occur outside of the cell, in the body tissues, as well.
Your answer is C, but I wanted you to know why. As a retired teacher, I need to explain things so you understand why this answer is right and the others are not and not just give you a letter. That teaches you nothing.