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Nutka1998 [239]
3 years ago
15

Please help me!!! I promise to mark brainlest thx!!!

Biology
1 answer:
ser-zykov [4K]3 years ago
5 0

It is the third one ........(i need to do 20 characters in order to send the awnser)

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What causes changes in air pressure in the atmosphere
harina [27]

Answer:

Air pressure is caused by the weight of the air molecules above

Explanation:

Air pressure is caused by the weight of the air molecules above. Even tiny air molecules have some weight, and the huge numbers of air molecules that make up the layers of our atmosphere collectively have a great deal of weight, which presses down on whatever is below.

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3 years ago
Why are coastal wetlands important and what are the sources of pollution that affects them?
vaieri [72.5K]
Coastal habitats provide ecosystem services essential to people and the environment. ... Services provided by coastal wetlands include: Flood Protection: Coastal wetlands protect upland areas, including valuable residential and commercial property, from flooding due to sea level rise and storms. pollution kills much of the life that lives there and radically decreases biodiversity
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3 years ago
What do organisms use to help regulate pH in the body?
Inga [223]
Hydrogen and hydroxide ions
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2 years ago
If the bacterium staphylococcus aureus experiences a cost for maintaining one or more antibiotic-resistance genes, then what sho
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The bacteria must be outcompeted and substituted by bacteria that have gone this genetic factor. In addition, antibiotic resistance is a natural phenomenon.  Once an antibiotic is used, bacteria that can fight that antibiotic have a greater chance of existence than those that are vulnerable. The vulnerable bacteria are exterminated or inhibited by an antibiotic, subsequent to a selective weight for the existence of resilient tensions of bacteria. Around opposition happens without human deed as bacteria can yield and use antibiotics in contradiction of other microorganisms, prominent to a low-level of the natural assortment of opposition to antibiotics. Though, the presently advanced points of antibiotic resilient bacteria are credited to the abuse and abuse of antibiotics. 
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What is the result of most mutations
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Mutations are simply a change in genes. So mutations usually result in variation of an organism that can be good or bad. Some mutations can result in physical and mental disorders like Stockholm disease or down syndrome, Where else some mutations can cause immune to diseases that are harmful.
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