Blank cells are typically connected to connective tissue, they contact and relax to move the skeleton. Blank cells carry oxygen and nutrients from food to the rest of the cells in our body.
Blank cells digest our food using enzymes which allows nutrients to be absorbed.
Blank cells allow us to use our senses to process stimuli and help us decide how to respond to that stimuli.

1- muscle cells

2- red blood cells

3- unique chief cells

4- sensory receptor cells (works with a neuron)

Explanation:

1- muscle cells are typically connected to connective tissue, they contact and relax to move the skeleton.

2-red blood cells carry oxygen and nutrients from food to the rest of the cells in our body.

3-unique chief cells digest our food using enzymes which allows nutrients to be absorbed.

4-receptor cells  allow us to use our senses to process stimuli and help us decide how to respond to that stimuli

wha is what i will use to get my free points

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