Answer:
Blood vessels constrict
Explanation:
On seeing danger, impulses are sent to the adrenal medulla. It responds by secreting adrenaline into the bloodstream. This results in the following:
- Increased heartbeat
- Diversion of blood from alimentary canal and skin to skeletal muscles.
- Increased breathing rate and depth
- The liver releases more glucose.
These changes increase energy production especially in the skeletal muscles and prepare animal for sudden fight or flight.
Answer:
Definetly global warming, the biggest problem we have on our planet
Explanation:
Answer:
a food chain shows how the organisms are related with each other by the food they eat.
Explanation:
That is false. pollution in the environment definitely does affect people.
