Biology, 09.06.2021 15:20 shandrablue68681
A mammal's red blood cells produce the protein hemoglobin, which carries oxygen through the bloodstream. Its hair follicle cells do not produce hemoglobin. Which statement is true about these differences? A) The red blood cells contain different genes than the hair follicle cells, causing the cells to differentiate B) The red blood cells contain DNA, but the hair follicle cells do not C) A red blood cell and hair follicle cell have the same genes, but they are expressed differently D) The hemoglobin is produced from recombinant DNA, which is only found in red blood cells
Answers: 1
Biology, 22.06.2019 03:30
Explain how the number of similarities between the embryos from early stage to late stage is used as evidence of a common ancestry
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Biology, 22.06.2019 09:30
What's wrong with this ecological pyramid? (multiple choice)1. secondary consumers should be at the bottom of the pyramid2. the sun has an arrow leading to decomposers 3. primary consumers should come after the sun4. energy retained should increase from the bottom to the top5. the sun should be at the bottom of the pyramid
Answers: 1
Biology, 22.06.2019 14:30
How can we use spectral lines of light coming from the superclusters to identify which is receding from earth at the slowest rate.
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A mammal's red blood cells produce the protein hemoglobin, which carries oxygen through the bloodstr...
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