Which characteristics do all bony and jawless fish have in common? Check all that apply. backbone swim bladder scales gills bony skeleton

1) They have a notocorda that serves as support through the back of the fish.

2) Gill bags. These organs are responsible for filtering the oxygen in the water.

3) A pineal eye that is sensitive to light.

4) A cartilaginous skeleton.

Explanation:

a neutral ph of 7 and normal organism temperature is needed for a certain enzyme to be effective.  

what would happen to the enzyme if the ph and/or temperature fluctuate greatly from the norm?  

a.the enzyme’s hydrogen bonds will break.  

b.the activation energy will increase.  

c.more product will be formed.

d.the ideal temperature and ph for the enzyme function will decrease.  

cellular respiration oxidizes food into energy in the form of atps.

glycolysis (6 c hexose) > 2x atps are used > 6c hexose biphosphate > 2 x 3c triphosphate >

2 x 3c pyruvate (2x nadh produced from nad) and (4x atp produced)

pyruvate actively pumped mitochondrial matrix.