Answer:
An angiosperm is a plant that produces flowers. The angiosperms, also identified as the flowering plants, belong to one of the vital groups of plants having seeds.
Explanation:
Out of the following given choices, the answers are;
morning stiffness in joints
swelling of joints soft-tissue swelling of at least three joints
Rheumatoid arthritis is the damage to the joint cartilage due to autoimmunity . This causes increased friction (hence wear and tear) of the bones at the joints. This causes pain at the joints and hence the subject is immobilized.