What technological advancement was necessary before scientists could begin to observe cells? invention of the magnifying glass invention of the microscope invention of the telescope invention of the thermometer

Describe the function of the endomembrane system? what organelles are involved?

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

Which enzymes break down carbohydrates?