A is pointing to the body. B is pointing to the head. Use the diagram to identify the parts of the nervous system.

Label A is pointing to the
nervous system.

Label B is pointing to the
nervous system.

the "power" of a lens is its resolution power, or its ability to distinguish between to closely located points. with the low power lens, it is likely you will see the rough form of the hay and maybe some movement of dots around the hay. however, when observed with the high power lens, the detailed features of the hay become visible and the microbes being grown are more clearly visible.

i hope this you

not necessarily. higher fitness requires the organism to be reproductive successful. for example, an organism at age 10 with 15 offspring is much more fit than an organism at age 15 with only 5 offspring.

not always but somethings can be reproduced in a laboratory.