Epiglottis
The epiglottis is a flap of cartilage the covers the entrance to the throat protecting the lungs from obstruction. It moves when we swallow to allow food in.
The food web in a diverse ecosystem can strongly influence ecosystem functioning. It consists of all the food chains in a single ecosystem, and all living things in an ecosystem is part of numerous food chains.
Hai :3
Your question is related to physiology.
Of all your choices, urination is not controlled by the brain stem. Urination is controlled by the micturition reflex, so your answer would be A. urination.
The sun gives energy to producers or plants. Then, the herbivores that eat the plants. After that the first level consumers eat the herbivores. Then the second level consumers eat the first level consumers, then so on. This might seem like there is a lot of energy from level to level. But, only 10% of each level goes to the next level. The other 90% is used for energy.
Thanks for the opportunity to answer your question and I hope that this helps! :)
When potatoes are in ground, they do not swell with water when it rains. The potato is already filled with water. The potato cannot gather the minerals directly. It is the roots that absorb the nutrients and send it to the potato. The rain water has little effect on the potato. I hope the answer has helped you.