A central nervous system is a complex of nerve tissues that controls the activity of the body. It deals with the brain and spinal cord.
Human brain weighs up to 1300 to 1400 grams and in length it is around 14 to 15c long
1)A-john take the cut in pay is positive because he still has a job, negative is he has less pay. B- loose his job he can get a new one with more pay .
2)A- positive Helen move to with her family and not be alone, negative she looses a semester at school. B- positive she stays a school and can finish the semester, negative she stays alone.
3.A) positive Bill picks pecan he likes it, negative he picks pecan he doesn't like it. B) positive He picks cherry he likes it, he picks cherry he doesn't like it
Answer:
A diagram showing 4 stages of succession in a forest ecosystem. ... A fire occurs, resulting in Stage B, a burnt forest where nothing is growing. Stage C, pioneer plant species grow in the bare ground. More species follow and grow bigger. Stage D: A mature forest with several tree species and younger trees.
Explanation:
A diagram showing 4 stages of succession in a forest ecosystem. ... A fire occurs, resulting in Stage B, a burnt forest where nothing is growing. Stage C, pioneer plant species grow in the bare ground. More species follow and grow bigger. Stage D: A mature forest with several tree species and younger trees.
Answer:
About 5 billion years ago