2. Which of the following plants might be specifically chosen to attract tiger swallowtail butterflies to a garden? a. milkweed
b. tulip poplar
c. aspen
d. nasturtium

Which of the following describes a negative feedback loop? when the heart rate is too high, the body sends hormones that continually increase the heart rate higher. when a pregnant woman is in labor, the body sends hormones that increase the intensity of contractions, which then increases the secretion of the same hormones. when blood sugar is too low, the body sends hormones that raise blood sugar until it reaches a typical level and hormone secretion slows. when a person is jogging, the body sends hormones that continually decrease the rate of oxygen supply to the legs.

Read each description below and determine to which stage of sleep each pertains. then click and drag each box into the appropriate category below.

The basic types of tissue in the human body are