Aperiod in the embryonic stage during which certain developments must occur because they will not occur later is called the period.

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

If a strand of dna has 35% thymine. what is the percentage of cytosine, adenine, guanine?

Drag each tile to the correct location. match each trait that an organism displays to a reproductive strategy.