During prophase 1 of meiosis, crossing over between the sister chromatids occurs. what is the purpose of this process

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

Which type of transport is responsible for oxygen entering into blood cells? a. vesicle b.passive c. facilitated d.active b.passive

Which level of taxonomy has the fewest organisms?