#Question id: 11583
#XL - T Zoology
Use the figure to answer the following question.
In an experiment, rats' ovaries were removed immediately after impregnation, and then the rats were divided into two groups. Treatments and results are summarized in the table. The results most likely occurred because progesterone exerts an effect on the ________.
#Question id: 11585
#XL - T Zoology
Osteoporosis is a condition in which the density of bones is decreased so much that the individual is at a higher risk of fractures. The more calcium in the bones, the better the bone density. Which of the following would produce the greatest increase in bone calcium levels?
#Question id: 11586
#XL - T Zoology
Predict the effects of a drug that increases adrenocorticotropic hormone (ACTH) synthesis.
#Question id: 11587
#XL - T Zoology
People experiencing chronic stress may be more likely to become sick because ________.
#Question id: 11589
#XL - T Zoology
The body's reaction to parathyroid hormone (PTH), raising plasma levels of calcium, can be opposed by:
#Question id: 11590
#XL - R Botany
Seed germination may require gibberellins for one of several possible steps: