List and describe four stages/processes within a typical animal excretory system.

The four stages of the excretory system are:

1. Filtration

2. Reabsoprtion

3. Secretion

4. Excretion

Explanation:

Filtration - Waste is taken out of the bodily fluids by pressure filtration

Reabsorption - Clean bodily fluids are reabsorbed back into the body/blood

Secretion - Adding of toxins and wastes from the body fluids to the filtrate

Excretion - Expulsion/release of the waste products out of the body through urine, sweating, etc

the way that the mass of carbon can be conserved through cellular respiration is through a process/law called the law of conservation of mass which even tho it undergoes a process, mass is not be destroyed or changed

did you fail the test? xd