The Elements Indicated by the Shaded Area in the Following

question 164

Multiple Choice

The elements indicated by the shaded area in the following periodic table are all

• A)gases.
• B)metals.
• C)nonmetals.
• D)semimetals.

Describe the ecological and evolutionary significance of angiosperms and gymnosperms.

Identify the major groups of seed plants and their general characteristics.

Explain the process of pollination and fertilization in plants.

Understand the adaptations seed plants have developed for survival in terrestrial environments, including desiccation resistance.

---

Definitions:

Phenytoin

An anticonvulsant medication used to control seizures by slowing down impulses in the brain that cause seizures.

Pruritus

A sensation that causes the desire or reflex to scratch due to irritation of the skin.

Digoxin

A medication used to treat various heart conditions, particularly heart failure and atrial fibrillation.

Therapeutic Range

The concentration range of a drug within the blood that is considered effective and safe.