When a mutation substitutes for a single codon, which position is most likely to change the amino acid associated with that codon? Why is that?

Transmission electron microscope are best for viewing a) microorganisms in pond water b) internal organs of a mouse c)internal structures of a cell d) surface features of a specimen

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 feature of a human community is similar to a niche in a biological community