Answer:
Answer is C. Structures of animals that have different appearances and functions but seem to have evolved from the same body part in a common ancestor.
Explanation:
This can be found in Cat's leg and human arms.the structure do not need to look the same or perform the same functions.
Answer:Ionic and Metallic Bonding. Electron Dot Diagrams. Describe the electron dot diagram system of representing structure. Draw electron dot diagrams for elements. ... We can mark these electrons and indicate what happens to them when an element ... of an atom are shown as dots distributed around the element's symbol.
Explanation:
The choice is D - both A and C
Mucus would most likely accumulate in the respiratory tract as a result of ciliary destruction.
Pertussis (whooping cough) is a highly contagious respiratory tract infection. A severe hacking cough is followed by the a high-pitched breath intake that sounds like "whoop" in many people. Before the vaccine, whooping cough was thought to be a childhood disease. Whooping cough now primarily affects children who have not received the full course of vaccinations, as well as teenagers and adults whose immunity has waned.
Deaths from whooping cough are uncommon, but most commonly occur in infants. That is why it is critical for pregnant women and others who will have close contact with an infant to be immunized against whooping cough. The best way to avoid pertussis is to get vaccinated. Check that you and your loved ones have received their pertussis vaccines.
To know more about the Pertussis, here
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You forgot to add the answers but a non living factor that could contribute could be something like temperature.
