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Leno4ka [110]
3 years ago
7

LESSON REVIEW

Biology
1 answer:
Jlenok [28]3 years ago
3 0

Answer:

1.C

2.its a secondary consumer

Explanation:

please like and Mark as brainliest

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Help i will give brainliest!!!!!
IrinaVladis [17]

Answer:

c i did this test and got it right

Explanation:

3 0
3 years ago
PLEASE HELP You must design a valid experiment to show that there are microorganisms in the air. What would be your dependent va
Komok [63]
You can carry out a test , 
1- take a sample of the air in a test tube 
2-add limewater to the test tube 
3- result : if it turns milky/cloudy it has microorganisms 
4- reason: because every microorganism respires , and so it produces Carbon dioxide . 
and limewater is the test to show the presence of Carbon dioxide . 


6 0
3 years ago
Hemoglobin buffers the pH of the cytosol of RBC by combining with ______ions.
jarptica [38.1K]

Answer:

H+

Explanation:

Hemoglobin is the major protein of red blood cells. It has many exposed amino groups and carboxylic groups at its surface. These NH3 and COOH groups serve as weak acids and bases respectively and allow hemoglobin to serve as a buffer to maintain the pH of the RBC cytoplasm.

As the exposed amino groups of hemoglobin protein bind to the H+ ions, the free H+ concentration of the cytoplasm of RBC is reduced leading to a buffer action to maintain the pH.

6 0
3 years ago
What macromolecule is the most common in the item in the picture?
Rama09 [41]

Answer:

If that is a picture of DNA, then nucleic acids are the most common macromolecule

Explanation:

5 0
3 years ago
At Happy Harry’s Laundromat, the dryer costs $1.50 for 10 minutes. At Jolly Judy’s Laundromat the dryer costs $2.25 for 15 minut
g100num [7]
They are equal I think
8 0
2 years ago
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