Answer:
pathogens
Explanation:
pathogens may occur in various way e.g spread from a person to person by directly body contact
The two categories would be Biotic and Abiotic
Answer:
Plants take in carbon dioxide from the environment for photosynthesis. Because trees are large, they need a lot of energy, which likely results in a lot of carbon dioxide being removed from the air. If they’re chopped down, there will be fewer trees to remove the extra carbon dioxide from the air.
Explanation:
answer from Plato
In physical science there are two types of "isolated systems"
1. Being a Physical System in which it is so far removed from other systems that it does not react with any of them.
2. Being a Thermodynamic System in which it is enclosed by rigid immovable walls of which neither mass nor energy can flow through.
I believe in this case although not stated that it would refer to a Thermodynamic System which would leave you with the only plausible answer as ENERGY AND MATTER CANNOT ENTER OR LEAVE.
None of the other answers make sense. Even if it were referring to Physical. Physical does not react with anything at all. An as you can see Thermodynamic does not allow for anything to pass through or leave.
Its clear that posterior chest stays outside of lungs hence the lungs muscles are involved.
- There are different sounds occur in our body
- When we tap on lunds tissue low pitched, hollow sounds are heard .
- When we tap on bones flat or extremely dull sounds areheard .
- When we tap over heart dull or thudlike sounds are normally heard
