Why do some animals like dogs have a short lifespan

The energy available as a result of the motion of a body is called energy. -potential -gravitational -kinetic -chemical

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

Has anyone taken the genetics unit test in connexus? not looking for answers, just a little bit what to expect and some with studying.