How does the body avoid damaging the digestive enzymes in the small intestine with this strongly acidic ph as the food passes out of the stomach?

Which of these is most likely to happen if parallax measurements of star distances are taken after a gap of six months? the results would be accurate the results would be inconsistent the results would not be valid the results would not be repeated

In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?

As the pea seeds respire, the level of coloured liquid in the left hand part of the capillary tube rises. by referring to what is happening in the apparatus, explain why the level of liquid changes