Formulate a question that could be answered observing chromosomes of different species of animals

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

To sciences do not agree on which type of grocery bag is better for the environment what is most likely to come out come out of the disagreement

Which kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm