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noname [10]
3 years ago
9

What actions can you take to reduce water pollution?

Biology
2 answers:
madreJ [45]3 years ago
8 0

Answer:

Clean up after yourself, don't dump out your nasty stuff into a body of water. Just don't pollute in general

Explanation: lmk if this is helpful...

BartSMP [9]3 years ago
6 0

Answer:

Lessen the amount of oil in ships and cars, dont throw out plastic recycle it, and dont use harsh chemicals

Explanation:

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a model of a car has a scale 1:20. the volume of the actual car is 12^3 find the volume of the model​
Scrat [10]

Answer:

86.4

Explanation:

Find the actual car volume, then divide it by 20

3 0
3 years ago
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
Function of hair erecter muscles? your points has to be of 10 marks to get a brainiest
Natasha_Volkova [10]

Answer:  a tiny muscle connected to each hair follicle and the skin. When it contracts it causes the hair to stand erect, and a "goosebump" forms on the skin.

8 0
3 years ago
the graph demonstrates the quantitative variation for skin pigmentation. which conclusion is supported by the graph? a)more than
BartSMP [9]

Answer : Option D) Fewer people have skin pigmentation lighter than the central peak than people who have pigmentation darker than the central peak.

Explanation : The quantitative variation which is shown for the skin is best explained by option D. Which shows that fewer people have got skin pigmentation which is lighter than the central peak in the graph, compared to the people who have darker pigmentation than the central peak.

4 0
3 years ago
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zvonat [6]
<span>Oxytocin and antidiuretic hormone (adh) are synthesized in the  ypothalamus but released from the posterior pituitary.</span>
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3 years ago
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