Help i’m confused ???

anaphase for the first one be cause the chromosomes are being pulled away by centrioles.

metaphase for the second one because the chromosomes are in the middle and centrioles are attached to them, getting ready for anaphase.

telophase for the third one since the cells are separating.

prophase for the last one.

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products

answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]