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Read an Academic Passage Test #015

Read an Academic Passage

The Vital Role of Bees in Pollination

Pollination is a crucial process for the reproduction of most flowering plants, and insects are the most important group of pollinators. Among these, bees are particularly effective. As they travel from flower to flower collecting nectar and pollen for food, they inadvertently transfer pollen grains, facilitating fertilization. This relationship between bees and plants is a classic example of mutualism, where both species benefit. The plants achieve reproduction, while the bees receive the nourishment necessary for their survival. Over 80% of the world's flowering plants, including many food crops, depend on animal pollinators to some degree.

The effectiveness of bees as pollinators is due to several unique characteristics. Many bee species have hairy bodies that are adept at trapping pollen grains, ensuring that more pollen is carried between flowers. Furthermore, bees exhibit a behavior known as "flower constancy," meaning they tend to visit the same species of flower during a single foraging trip. This behavior is highly efficient for the plant, as it increases the chances that pollen will be transferred to a receptive flower of the same species, rather than being wasted on a different one. This specialized behavior distinguishes bees from many other insects that visit flowers more randomly.

However, bee populations worldwide are facing significant threats, including habitat loss, pesticide use, and diseases. The decline in bee populations poses a serious risk to both natural ecosystems and agriculture. Many of the fruits, vegetables, and nuts we consume depend on bee pollination. The potential consequences of a continued decline in pollinators are severe, including reduced crop yields and a loss of biodiversity. Efforts to protect bees, such as creating pollinator-friendly habitats and reducing pesticide exposure, are therefore essential for maintaining ecological balance and ensuring food security.

1. What is the main subject of the passage?
A) The different types of insects that are pollinators
B) The importance of bees for plant reproduction and ecosystems
C) The economic impact of declining food crops
D) The life cycle and social structure of honeybees
2. The word 'adept' in the passage is closest in meaning to
A) unsuited
B) similar
C) skilled
D) covered
3. What can be inferred about a plant that is not pollinated by bees?
A) It might rely on wind or other animals for pollination.
B) It cannot produce any fruits or vegetables.
C) It does not produce nectar or pollen.
D) It is likely to become extinct very soon.
4. According to the passage, what is "flower constancy"?
A) A bee's ability to locate flowers from a distance
B) A plant's tendency to produce flowers consistently
C) A bee's preference for visiting one type of flower at a time
D) A flower's adaptation to attract a specific bee species
5. What is the main purpose of the third paragraph?
A) To describe the physical characteristics of bees
B) To explain the process of nectar collection
C) To highlight the threats to bee populations and the consequences
D) To compare the efficiency of bees to other pollinators

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