A Fifteen-Foot Tree Growing in a Fence Row Is Used

question 4

Multiple Choice

A fifteen-foot tree growing in a fence row is used as a fence post to which barbed wire is stapled at a height of five feet.Years later,the tree is thirty feet high.The barbed wire of the fence is embedded in the tree bark at

• A) still five feet high since the lengthening of the trunk occurs at the apical meristem.
• B) fifteen feet up since the tree doubled in height.
• C) twenty feet up, still ten feet from the top of the tree.
• D) twenty feet up, but because it added fifteen feet to the original five-foot height.
• E) ten feet up, half of the increase in size; the second half is an increase in the girth of the tree

---

Definitions:

Corpus Albicans

The corpus albicans is the regressed, fibrous remains of the corpus luteum in the ovary, following the absence of pregnancy.

Progesterone

A steroid hormone involved in the menstrual cycle, pregnancy, and embryogenesis of humans and other species.

Spermicidal Agents

Substances used to kill sperm, often used as a form of contraception.

Perimenopause

The transition phase before menopause, marked by irregular menstrual cycles and changes in hormone levels, leading up to the end of reproductive years.