During the first trimester, the blood volume of the mother increases by which of the following? 15 to 25 percent

20 to 30 percent

35 to 45 percent

40 to 50 percent

How does the study of genetic disorders such as pku biologists understand normal alleles?

The fruit of a certain plant is sweet and fleshy. the seeds of this plant have a seed coat that is fairly tough. the seeds germinate better if they are exposed to acid, or scarification. what is the most likely type of dispersal for this seed? water animal wind

One important development during the 3rd trimester that will insulate the infant against changes in temperature is a. the deposition of fat under the skin b. the closing of the septum between c. the atria of the heart d. the beginnings of lung functioning e. the beginnings of light and sound sensing