During Pollination, Multiple Pollen Grains Are Delivered to the Stigma

question 41

Multiple Choice

During pollination, multiple pollen grains are delivered to the stigma. Which of the following phenotype traits provides the greatest selective advantage for successful fertilization?

• A) high pollen tube growth rate and ability to detect chemicals from synergid cells surrounding the egg
• B) high rate of mitosis in the growing pollen tube
• C) elaborate and striking UV "nectary guides" on the petals to guide an insect to the stigma
• D) Pollen grain with large generative cell to provide enough cytoplasm for pollen tube growth

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Definitions:

Tribal People

Indigenous communities with distinct cultures, traditions, languages, and connection to ancestral lands, often living in close harmony with nature.

Europeans

Refers to people from the continent of Europe.

Soil Fertility

The ability of soil to provide essential nutrients to plants, crucial for agriculture and natural ecosystems.

Renew

To restore to a fresh condition or to regenerate, often referring to natural resources, energy, or policies aimed at sustainability.