The best answer is D, birds.
For more information and details on the way a bird's respiratory system works:
https://asknature.org/strategy/air-flow-patterns-facilitate-efficient-gas-exchange/
The earth's surface features are constantly changing in a process known as weathering and erosion. Weathering would happen when rocks would break physically like frost shattering while erosion happens when sediments and rocks are moved from one place to another by agents like water, gravity, wind and ice. These two occurrences are the cause of the constant change of the Earth's surface.<span />
Answer:
Consuming tuna from a dented, bulging can. (Ans. C)
Explanation:
Botulism is a rare poison, and caused by a toxin which is known as clostridium botulinum. Botulinum requires emergency medical care because sometimes it can be fatal. It can spread through contaminated water, food, and by touching the surface area which is contaminated.
Symptoms of botulism includes:
1) Difficulties in speaking, and facial weakness.
2) Pain in the abdomen area.
3) Weak eye muscles.
4) Feeling dizziness.
5) Double vision or blurred vision.
What are you asking Im not understanding this I would help but I dont unerstan.