9. Which row in the chart below contains a correct
comparison between nervous regulation and chemical
regulation?
Row Nervous Regulation | Chemical Regulation
A 1 Slow response ) Fast response
Long duration Short duration
Involves neuro Involves hormones
transmitters
Common to all Only in multi-
organisms cellular animals
1) A
2) B.
3) C
4) D

the answer is b: 1.4 km/hr

answer:

the water molecules are transferred from the roots to the stem or top parts of the tall tree because of important properties of water which are adhesion, cohesion and capillary action. cohesion is the property of water molecules keeps water molecules in a combined state by sharing of bonds between them at the atomic level. adhesion allows the interaction of water molecules with other substances or substrate. adhesion will cause the attachment of water molecules to the wall of the vessel (xylem) of the plant. capillary action occurs when the adhesive force to the vessel wall is stronger than the cohesive force between water molecules. capillary action mimics the transfer of water from a tube or pipe. in this way water utilizes its property to transfer water from down to top level of the plant.  

the answer is cell division : )

sex cells are usually half's then they find another half and make a fertilize egg