The diagram below shows the first four steps of meiosis. What is happening in the step labeled B?
Meiosis I
ABC
D
O A. Mitotic spindles and spindle fibers are forming.
B. Spindle fibers are moving the chromosomes to the center of the
cell.
C. Spindle fibers are pulling the tetrads apart.
O D. The chromosomes are copied and form tetrads.

1: the largest region of the brain is the:

  cerebrum

2. the term "psychology" literally means:

the process or procedure of the science or study of the mind.

3. the area of the brain responsible for respiration, heart rate, and smooth muscle control of our blood vessels is t

medulla oblongata

4. the structure that conducts nerve impulses to and from the brain and serves as a reflex center for some sensory information without input from the brain is the:

spinal cord

5. the three-layered membrane that covers the brain and spinal cord and literally means membrane is called the:

meninges

6. the cord-like (string-like) structures that carry bio-electrical impulses from one part of the body to another are called

nerves

7. a group of nerve cell bodies that are found outside of the spinal cord and brain are referred to as:

ganglions or ganglia (pl.) “literal meaning knot”

8. the term that means spinal cord inflammation is:

myel/itis

it would be heredity