Answer:
They are called covalent bonds.
Explanation:
I just went through the lesson.
Answer:
Explanation:the cranial end of the neural tube closes by 24days and the caudal 25-36 days . Defective closure of the neural tube result in neural tube defects (NTDs) . it also depends on the point of the defect , NTDs may also affect the brain and spinal cord.
A bacteria cell differs from a plant or animal cell by being less complex in structure.
Hyennas, and leopards hope this helps <span />
<span>The invention of the microscope led to the development of a much more detailed classification system. Prior to the microscope, we believed the only life was life that we could visually see with the naked eye. However, with the invention of the microscope we were able to see that more life is contained in a small droplet of water than there are people on earth. It was eye-opening!</span>
