Vein because they have valves to prevent back flow of blood.
Reducing the Chemicals dumped into wastewater
The statement above is FALSE.
When a particular specie in an ecosystem is endangered, other species that interact with it will be negatively affected and the ecosystem may be throw out of balance. This is because all the components of the ecosystem depend on one another for survival.
<span>Choice (B) is the only incorrect statement about Type 1 diabetes. Insulin is not produced in the pancreas by a person with this disease, because the cells that do this type of work have been attacked and destroyed by one's own system. This requires daily insulin injections and constant maintenance, beginning in childhood.</span>