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Elena-2011 [213]
3 years ago
15

How are protozoa similar to animals?

Biology
1 answer:
irga5000 [103]3 years ago
7 0
<span> Both are eukaryotic and have a single cell membrane which means no cell wall.

</span>
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How does pH relate to ocean acidification? <br><br><br>How does CO2 and pH in the ocean relate?
Alex17521 [72]

Answer:

When carbon dioxide dissolves in seawater, the water becomes more acidic and the ocean's pH (a measure of how acidic or basic the ocean is) drops. ... In fact, the shells of some animals are already dissolving in the more acidic seawater, and that's just one way that acidification may affect ocean life.

Change the wording a bit otherwise hoping ti helps

7 0
3 years ago
A group of adults and students went on a class trip to Washington, DC. The number of male students was 1 more than 7 times the n
Maru [420]
There were A adults, Sm male students, and Sf female students. 
<span> </span>
<span>Sm = 1 + 7A </span>
<span>Sf = Sm/2 </span>
<span>A + Sm + Sf = 82 </span>

<span>A + (1 + 7A) + (1 + 7A)/2 = 82 </span>
<span>2A + 2 + 14A + 1 + 7A = 164 </span>
<span>23A + 3 = 164 </span>
<span>23A = 141 </span>
<span>A = 7 </span>

<span>The number of male students is 50. </span>
<span>The number of female students is 25.</span>
6 0
3 years ago
Describe how the body uses negative feedback to regulate body temperate.
myrzilka [38]

Hope it helps yah (◕ᴗ◕✿)

7 0
3 years ago
Which of the following are part of the body’s first line of defense against pathogens?
Fed [463]

The answer is "D"

The body's first line of defense is also known as Innate immunity and incudes mucous membranes. Both the intact skin and mucous membranes of the body offer a high degree of protection against pathogens.

 A good example is the mucous membrane of the respiratory tract. It is lined up with cilia and covered with mucus. The coordinated beating of the cilia drives the mucus up to the nose and mouth where the trapped bacteria can be expelled.

(Lymph nodes and white blood cells belong to the second line of defense, not the first) 

3 0
3 years ago
which term refers to the structure that forms the surface of a cell separeting its conctents from the outside world
Deffense [45]

i think it is called a stomata


7 0
3 years ago
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