Answer:
A
Definition of an Oran System:
An organ system is a group of organs that work together as a biological system to perform one or more functions. Each organ does a particular job in the body, and is made up of distinct tissues.
Hi,
so a person can be a carrier of a disease but not have it, and no its not true for all carriers some carriers may not have that disease at that moment but can catch it later on in life.
Algae are considered to be plant-like protists.
Break down of carbon dioxide
Answer:
option B. cohesion..........tree.