I think it’s loss of ozone layer
Answer:
How respiratory system works?
What are the components of respiratory system?
Explanation:
Our lungs expand when we breathe in through our nose and mouth. That air moves down our trachea, through your bronchi and into the bronchioles, where it enters your alveoli where blood capillaries are passes which load oxygen and unload carbondioxide gas which can be removed from our body through exhalation. Nose, mouth, throat (pharynx), voice box (larynx)
, windpipe (trachea)
, large airways (bronchi) and lungs are the main components of our respiratory system.
The sentence which should come next in the paragraph to maintain the compare contrast structure is, Gerbils have long furry tails, while hamsters do not have tails.
Answer: Option C
<u>Explanation:</u>
Compare and contrast text structure is basically a type of structure where two things are compared and contrasted at the same time. In simple terms, comparison is finding the similarities whereas contrast means finding the differences.
When it comes to Gerbils and hamsters, both these organism have many similarities. The only difference is in their tail. Gerbils have a very long and furry tail, hamsters on the other hand have a very short tail. Their tails are so short that one often find it difficult to notice its tail.
Acoelomates since it is defined as an animal who lacks a coelom; it also exhibits bilateral symmetry and has no body cavity between the gut and epidermis.
By only two traits
That is the answer to the question I hope it helps I got it right on the test.
