What Is Characteristic of Tracheid Cells That Are Mature

question 23

Multiple Choice

What is characteristic of tracheid cells that are mature?

• A) They contain cytoplasm at maturity.
• B) They have both primary and secondary walls.
• C) They have only secondary walls made of lignin.
• D) They have only primary walls made of cellulose.
• E) All of these answers apply.

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Definitions:

Infant Deaths

The demise of a baby before his or her first birthday, often caused by birth defects, preterm birth, maternal complications, or Sudden Infant Death Syndrome (SIDS).

In Vitro Fertilization

A medical procedure whereby an egg is fertilized by sperm in a lab dish, after which the embryo is transferred to a uterus.

Insemination

The intentional introduction of sperm into a female's reproductive tract for the purpose of achieving pregnancy through means other than sexual intercourse.

Embryo Transferred

A step in the in vitro fertilization process where a fertilized egg, or embryo, is placed into a woman's uterus with the goal of establishing a successful pregnancy.