Mendel’s pea plant experiments involved controlled crosses. Traits like flower color were studied. Cross-pollination of parental plants with specific traits led to predictable ratios in the offspring, revealing principles of inheritance.
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A food chain illustrates the transfer of energy in an ecosystem, showing the sequential flow of organisms consuming one another. Producers, consumers, and decomposers play vital roles in sustaining this dynamic process.
A concave lens is a transparent optical device with curved surfaces that diverges light rays. It causes parallel light rays to spread out and is commonly used in correcting nearsightedness in eyeglasses.
A convex lens is a transparent optical device with curved surfaces that converges light rays, causing them to meet at a focal point. It is used in magnifying glasses, cameras, and eyeglasses.
Human heart, a muscular organ, pumps blood throughout the body, delivering oxygen and nutrients. With four chambers and a rhythmic beat, it plays a vital role in maintaining circulation and sustaining life.