28. Female guppies prefer to mate with more colorful males; thus, male guppies have become quite colorful over time. Which factor is most likely to cause male guppies to evolve dulier colors over time?
A) availability of food B) number of offspring C)predator behavior D)water temperature

Predator Behaviour

Explanation:

This is because if predators are more active, they'll most likely target the most colorful guppies. Therefore, guppies with duller colors have a higher chance of survival because they blend in/camouflage more with their surroundings.

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 water is warmed up by the sun and then it evaporates into the atmosphere. the sunlight warms the water by its heat. water is then cooled down and condensation takes place. the water then finally returns back to the earth by the process of precipitation in the form of rain or ice.

explanation: