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Perimeter of a quarter circle = (2πr)/4
r = 100ft
P = (2πr)/4 = (2×3.14×100)/4 = 157
Because we are calculating the length of the fence – as the fence goes aro...
A population of one species is separated by a physical barrier, e.g a geographical barrier such as the movement of tectonic plates. There will then be 2 isolated groups of the same species unable to inter...
Plant cells have chloroplasts, a vacuole and a cell wall.
Nucleus, mitochondria, ribosome, cytoplasm, cell membrane.
Covalent bonding is the sharing of electrons between 2 or more non metals.
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