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Trava [24]
3 years ago
5

Which is present on the surface of red blood cells and determines bloody types?

Biology
2 answers:
saveliy_v [14]3 years ago
6 0
B) Antigens is the correct answe
Law Incorporation [45]3 years ago
5 0
The correct answer is b, antigens
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Anni [7]
Can you provide more specific details? I’m not even sure what this question is about.
3 0
3 years ago
Serena is mixing a material into a beaker filled with a liquid. She notices that the material seems to disappear into the liquid
Lelu [443]

Answer:

The correct answer is - solubility

Explanation:

Solubility is the nature of the material that is a chemical property of that specific solute ability to dissolved in a solvent. The ability of solute or material in a solvent or liquid is measured by the term of the maximum amount of that material dissolved in the liquid at equilibrium.

Sugar and water is a great example of solubility. When sugar is missed in the water it dissolved in water and disappear in the water here sugar is solute and water is solvent.

Thus, the correct answer is - solubility.

4 0
3 years ago
What is secreted by the gastric mucous neck cells and pancreatic duct cells to neutralize stomach acid?
erik [133]

Answer:

Bio carbonate ions

Explanation:

The pancreas secrets an aqueous mixture ( water, digestive enzymes and bicarbonate ions) during digestion of food substances from the stomach into the duodenum to begin the process of absorption and assimilation.

The pancreatic duct are lined with duct cells. These are cells which secretes HCO3- ,into the aqueous mixture. This ion is basic. Therefore it  neutralizes the acidity of the  of  the chyme to  released from the stomach to enable the pancreatic enzyme to work.

The bicarbonate ions also prevent the walls of the pancreases from getting burnt by the effect if the acidity of the chyme.

3 0
3 years ago
• Durante mucho tiempo se cuestionó la llegada del Apolo 11 a la Luna. Relata en un pequeño informe las razones que alegaban uno
Svetlanka [38]
Lol I speak English whoops
5 0
3 years ago
Read 2 more answers
Scientists have created trains that use magnets to make the trains float above the tracks as they travel. These trains float bec
Arada [10]

Answer:

the poles repel

Explanation:

i believe this is the best answer

7 0
3 years ago
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