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iragen [17]
3 years ago
5

Explain how both passive

Biology
1 answer:
motikmotik3 years ago
8 0

Answer:

Passive transport must occur to maintain homeostasis. Active transport must occur to get the needed nutrients in and out of the cell.

Explanation:

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How did the battle between the mycenaeans and the troy begin and end?​
Anuta_ua [19.1K]

Answer: hope this helps!!!!

The story of the Trojan War—the Bronze Age conflict between the kingdoms of Troy and Mycenaean Greece–straddles the history and mythology of ancient Greece and inspired the greatest writers of antiquity, from Homer, Herodotus and Sophocles to Virgil. Since the 19th-century rediscovery of the site of Troy in what is now western Turkey, archaeologists have uncovered increasing evidence of a kingdom that peaked and may have been destroyed around 1,180 B.C.—perhaps forming the basis for the tales recounted by Homer some 400 years later in the “Iliad” and the “Odyssey.”

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3 years ago
What does the letter "A" stand? Acid Adenine Adrenaline Amorphous
Ivahew [28]
A stand for Adenine. 
4 0
3 years ago
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Humoral immunity involves ________ cells and ___________
jarptica [38.1K]

Answer:

Humoral immunity involves <u>B cells</u> and<u> recognize antigens or pathogens in the lymph or blood.</u>

Explanation:

Humoral immunity is defined as the immunity which is mediated by several macromolecules presnet in the extracellular fluids such as antibodies, certain antimicrobial peptides, and  complement proteins.

Humoral immunity allows to distinguishes two groups of foreign substances. it involves <u>B cells</u> and<u> recognize antigens or pathogens in the lymph or blood. </u>

Humoral immunity begins when an antigens bind to B cells.  Interleukins or helper T cells provides a secondary signal to the B cells that activates a B cell and allows B cell proliferation.  which roduces produce plasma cells. The plasma cell then produces antibodies which are identical to the specific antigen. The antibodies are the released and circulate through the body, binding to antigens.  B cells the further produces memory cellss for future immunity.

So, Humoral immunity involves <u>B cells</u> and<u> recognize antigens or pathogens in the lymph or blood.</u>

8 0
3 years ago
Pleaseee helpppppppp!
Dafna11 [192]
The correct answer is d
6 0
2 years ago
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igomit [66]
I think it’s D bc it’s talkin about fossil fuels
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3 years ago
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