An eastern screech owl, a carnivore, might compete with which organism most intensely for resources? A. hawk (secondary consumer)
B. mountain lion (secondary consumer)
C. wren (primary consumer)
D. mouse (primary consumer)

Anton created a chart listing different types of materials. which best complete the chart?

Once an egg cell is fertilized by sperm, the cell then, as the embryo develops, it receives nourishment and eliminates wastes by transferring substances from its blood to its mother's blood. a. becomes a fetus immediately and exits the womb b. begins to divide and implants itself in the wall of the uterus c. remains in the uterus without dividing for several months d. travels back to the ovaries until the fetus is developed

Besides regulating what enters and leaves the cell, what is another function of your choice from question #1?