Some eukaryotic cells contain ______ for protection.
What will be an ideal response?
cell walls
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The hormone that promotes conservation of water in the human endocrine system is the
A. antidiuretic hormone (ADH). B. prolactin. C. oxytocin. D. luteinizing hormone (LH). E. thyroid-stimulating hormone (TSH).
The graph below shows the concentrations of B and C inside the cell over time when the cell that has imported B and C in Figure 8.1 above is transferred to a solution containing a much lower concentration of B and C
Based on these data and coupled with the data observed above, substance C is transported via A) active transport. B) facilitated transport. C) passive transport. D) simple diffusion. E) A, B, and C.
Suppose that your father has B blood and your mother has O blood. You learn that your blood is also type O. What does this tell you?
a. You were adopted and your parents did not tell you. b. You inherited one parent's blood type but not the other parent's blood type. c. Your father's genotype is IBIB and your mother's genotype is ii. d. Your father's genotype is IBi and your mother's genotype is ii.
The DO represents the _____ dose for human cells.
a) mean survival b) mean lethal c) 50% survival d) 50% lethal