The Size of a Plant's Seeds Reflects an Evolutionary Trade-Off

question 16

Multiple Choice

The size of a plant's seeds reflects an evolutionary trade-off.Large,heavy seeds contain ample nutrient reserves to fuel seedling growth but may not travel far.Small seeds,on the other hand,store limited nutrients but tend to disperse far and wide.The crops that humans cultivate typically have larger seeds than do their wild ancestors.How has human farming altered the evolution of these crops?

• A) We have removed the selection pressure favoring small seed size.
• B) Because we spread the seeds, we can spread more smaller seeds per acre, thus favoring these plants.
• C) We have created crop plants that are more competitive in the wild than their ancestors.
• D) We grow the plants under conditions that favor the growth of larger seeds.
• E) By using fertilizers, the seeds do not need to store as many nutrients.

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Definitions:

Rotation

The act of rotating around an axis or center, often referred to in physics and mechanics, or the movement around a joint in anatomy.

Elevation

An increase in height or the angle of something; also used to describe a geographical area's height above sea level.

Hip And Knee Joints

Hip and knee joints are pivotal components of the human skeletal system, facilitating movement and bearing the body's weight, with the hip acting as a ball-and-socket joint and the knee being a hinge joint.

Flex

The action of bending a limb or joint, usually by the action of flexor muscles.