Answer:
Sound travels better through solids than through air.
Explanation:
Think about being in the pool: you can hear a lot of things, albeit muffled a little. Or think about tapping a really long pole, and someone standing far away can hear the vibration or the noise while touching the pole.
Solids are more tightly packed together. Sound needs a medium to travel though, and anything with densely packed atoms is better than loosely packed. The hierarchy is solid > liquid > air. Kinda funny that we do most of our talking through air.
Answer:
B
Explanation:
Simple diffusion does not require energy: facilitated diffusion requires a source of ATP. Simple diffusion can only move material in the direction of a concentration gradient; facilitated diffusion moves materials with and against a concentration gradient.
Answer:
The correct answer is E.They retain water to prevent flooding and erosion.
Explanation:
Rain forests are used to be very dense forests where lots of raining takes place. The forest floor can soak up lots of rain and during flood dense forest with woodland trees do not allow water to run fast through them thereby reducing flood's effect significantly.
The roots of the trees in the forest binds to the soil on the floor and prevent soil erosion during flooding. Study shows that water retention is more in summer than in winters. Forest can store lots of water and transfer it to the streams which is helpful in providing clean water to the people in dry season.
Therefore, the correct answer is E. They retain water to prevent flooding and erosion.
Answer:
ENDOCRINES circulate in the blood and act at sites distant from their origin;
EXOCRINES pass through ducts;
and PARACRINES act on their local tissue environment.
Explanation:
Exocrines are known for producing external secretions that are released through a duct, usually into the digestive system or the skin
Endocrine are known for producing internal secretions called HORMONES that are transported around the body by the bloodstream. They are also called ductless glands.
Paracrines are known for producing hormones that act on his immediate location or producing gland
Answer:
ADP is combined with a phosphate to form ATP in tADP+Pi+free energy→ATP+H2O
Explanation:
The energy released from the hydrolysis of ATP into ADP is used to perform cellular work, usually by coupling the exergonic reaction of ATP hydrolysis with endergonic reactions.
