What is the main reason some people don’t stretch before exercising?

a: they don’t like to stretch.

b: they don’t know they should stretch.

c: they are young.

d: they don’t need to stretch.

What initially causes a nerve impulse? release of enzymes out of the neuron movement of chemicals into the dendrites of the neuron pathogens attacking the dendrites of the neuron red blood cells bathing the neuron

Describe characteristics of a good respitory surface

Which of these is not an example of molecular homology? 1. use of dna and rna as genetic material 2.use of glycolysis as the first step in cellular respiration in both plants and animals 3. the lack of an igf-1 gene in prokaryotes 4. the use of aldolase b to break down fructose in bacteria, plants and animals