Aphids Pierce the Tissues of Plants with Their Tubular Mouthparts

question 5

Multiple Choice

Aphids pierce the tissues of plants with their tubular mouthparts and suck out the phloem juices. Since this food is mostly sugar water with a low concentration of protein, the aphids have to process large volumes of it to obtain sufficient protein. Most of the excess sugar and water passes right through the aphids' digestive tracts and are defecated as "honeydew," which is actively sought out and eaten by some ants. The ants will even "milk" honeydew by stroking the aphids. In return, ants protect their aphids from predators, even going so far as taking them inside overnight! The relationship between the aphids and ants is called:

• A)predation.
• B)competition.
• C)parasitism.
• D)mutualism.

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Definitions:

Alignment Clips

Small components used to ensure proper positioning and alignment of parts during assembly or installation.

Multi-leaf Suspension

A type of vehicle suspension system made up of several layers of metal springs to provide support and absorb shocks.

Rubber Load Cushion

A component made of rubber designed to absorb shock and reduce vibration in various applications, including the loading of goods.

Equalizing Beams

Used in suspension systems, especially in heavy vehicles, to distribute load evenly across multiple axles for improved stability and wear reduction.