Which of the following characteristics of living things best explains why birds fly south for the winter? Question 4 options: a. Living things respond to their environment. b. Living things maintain internal balance. c. Living things are made up of units called cells. d. Living things are based on a universal genetic code.

advantage of using stem cells in medical research:

1.       it provides medical benefits in the fields of therapeutic cloning and regenerative medicine.

2. it provides great potential for discovering treatments and cures to a variety of diseases including parkinson disease, spinal cord injuries, diabetes, alzheimer’s disease and many more.

3. limbs and organ could be grown in lab from stem cells and then used in transplant or treat illness.

i think that the best answer would be c.

tell me if im wrong : )

hammurabi rulers

good lesson

her next move would be to use agarose gel electrophoresis to separate the dna molecules of varying length and create a dna fingerprint.