Double Fertilization Reduces the Energetic Cost of Reproduction

question 50

Multiple Choice

Double fertilization reduces the energetic cost of reproduction.In gymnosperms,the female gametophyte stockpiles food for the embryo in advance of fertilization.The investment is wasted if no zygote ever forms.In contrast,double fertilization ensures that an angiosperm devotes energy to the zygote only if sperm fertilizes the egg.Where is this energy stored in a fertilized angiosperm?

• A) zygote
• B) endosperm
• C) stigma
• D) egg
• E) pollen

---

Definitions:

Going Rate

The current average or standard price for goods or services in a particular market or industry.

Lottery

A form of gambling involving the drawing of numbers at random for a prize.

Annuity

A financial instrument that provides a regular sequence of payments to a person, mainly serving as a source of income for those who have retired.

Rate of Return

The gain or loss of an investment over a specified period, expressed as a percentage of the investment's initial cost.