I’m pretty sure flowers, when they are buds, are protected by leaf-like structures called “sepals.” All of the sepals collectively are called a calyx. They protect the bud and are behind the actual flower petals when it blooms. Hope this helped.
The tree of life is a metaphor which expresses the idea that all life is related by common descent. Charles Darwin was the first to use this metaphor in modern biology. It had been used many times before for other purposes. The evolutionary tree shows the relationships among various biological groups.
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I hope this helps.
If reproduction didn't exist, all species would eventually go extinct.
Yes, the bodies weigh less than their true weight when immersed in air. This is because, when any body is immersed in air, it displaces some air which is already occupied by that body. This creates an upward force called as buoyancy. The upward force is equal to the weight of volume displaced by that body.
<span>Mitosis is the usual method of cell division, characterized typically by the resolving of the chromatin of the nucleus into a threadlike form, which condenses into chromosomes, each of which separates longitudinally into two parts, one part of each chromosome being retained in each of two new cells resulting from the original cell.
Hope this helped!
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