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∙ 14y agohow often would a 12 year cicada face its predator with a 2 year cycle?
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∙ 14y agoCicadas likely evolved to have prime-numbered life cycles as a strategy to avoid synchronization with other insect species or predators. By having longer life cycles that are not easily divisible by other common periods, cicadas can reduce competition and increase their chances of survival and reproduction. This unique adaptation may have provided an evolutionary advantage, leading to the prevalence of prime-numbered life cycles among cicadas.
To think of cicadas as "deciding" something is anthropomorphizing; that is, using words that describe human attributions with things that don't really think as humans do. What probably happened is that those cicadas which happened to have a prime number cycle tended to avoid having predators match their periodic appearances and so increased relative to those that didn't, and as a consequence, got eaten. This is Natural Selection. Incidently, only Periodic cicadas have prime number cycles (17 or 13 years); there are also Annual cicadas which as their name implies, appear every year.
no. it affects the period of the cycles.
Hz = cycles/second. Therefore, at 2Hz, you're generating two complete cycles (or what I believe you refer to as waves) every second. So 2 cycles x 60 seconds = 120 cycles per minute. 120 cycles x 5 minutes = 600 cycles.
That's the unit of frequency ... "cycles per second", or simply "cycles".It has now been officially renamed the "Hertz".
Suppose the cicadas come out every C years and a predator comes out every P years. Then the life cycles of the predator and the cicadas will coincide every LCM(C, P) years. The predator will want it to happen as often as possible while the cicadas want that to happen as seldom as possible. If C is co-prime with P then the cycles coincide after CP years - which is best for the cicada.Suppose the cicadas come out every C years and a predator comes out every P years. Then the life cycles of the predator and the cicadas will coincide every LCM(C, P) years. The predator will want it to happen as often as possible while the cicadas want that to happen as seldom as possible. If C is co-prime with P then the cycles coincide after CP years - which is best for the cicada.Suppose the cicadas come out every C years and a predator comes out every P years. Then the life cycles of the predator and the cicadas will coincide every LCM(C, P) years. The predator will want it to happen as often as possible while the cicadas want that to happen as seldom as possible. If C is co-prime with P then the cycles coincide after CP years - which is best for the cicada.Suppose the cicadas come out every C years and a predator comes out every P years. Then the life cycles of the predator and the cicadas will coincide every LCM(C, P) years. The predator will want it to happen as often as possible while the cicadas want that to happen as seldom as possible. If C is co-prime with P then the cycles coincide after CP years - which is best for the cicada.
Cicadas likely evolved to have prime-numbered life cycles as a strategy to avoid synchronization with other insect species or predators. By having longer life cycles that are not easily divisible by other common periods, cicadas can reduce competition and increase their chances of survival and reproduction. This unique adaptation may have provided an evolutionary advantage, leading to the prevalence of prime-numbered life cycles among cicadas.
To think of cicadas as "deciding" something is anthropomorphizing; that is, using words that describe human attributions with things that don't really think as humans do. What probably happened is that those cicadas which happened to have a prime number cycle tended to avoid having predators match their periodic appearances and so increased relative to those that didn't, and as a consequence, got eaten. This is Natural Selection. Incidently, only Periodic cicadas have prime number cycles (17 or 13 years); there are also Annual cicadas which as their name implies, appear every year.
The 13-year and 17-year cicadas are isolated by their different life cycles and emergence patterns. This isolation prevents them from interbreeding and eventually leads to separate populations with distinct emergence times.
Nutrient Cycles, Predators and Prey, and Living Soil
The prey become extinct because they are always eaten by their predators.
It goes through complete metamorphosis.
Excess use of herbicides, primarily, as well as what climate change has had on the growth cycles of flowers in relation to when the bees come out of hibernation.
If winter were to disappear, it would have significant impacts on ecosystems, agriculture, and weather patterns. Animal hibernation, plant growth cycles, and snow-dependent industries would be affected. Climate change could also be exacerbated, leading to further environmental challenges.
A biological rhythm refers to the cyclical patterns or regular oscillations in biological processes, such as sleep-wake cycles, body temperature fluctuations, and hormone release, that occur in living organisms. These rhythms are influenced by internal biological clocks, external cues like light/dark cycles (circadian rhythms), and periodicity in daily, monthly, or seasonal cycles.
Sun Cycles Ocean Cycles Cosmic Cycles
3 cycles / 12 seconds = 0.25 cycles / second, or 0.25 Hz.3 cycles / 12 seconds = 0.25 cycles / second, or 0.25 Hz.3 cycles / 12 seconds = 0.25 cycles / second, or 0.25 Hz.3 cycles / 12 seconds = 0.25 cycles / second, or 0.25 Hz.