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Photoperiod is the change of day length around the seasons. The rotation of the earth around its axis produces 24 hour changes in light (day) and dark (night) cycles on earth. The length of the light and dark in each phase varies across the seasons due to the tilt of the earth around its axis.
Dictyocaulus viviparus found in the bronchi of a calf during necropsy (arrow). Parasitic bronchitis, also known as hoose, husk, or verminous bronchitis, [1] is a disease of sheep, cattle, goats, [2] and swine caused by the presence of various species of parasite, commonly known as lungworms, [3] in the bronchial tubes or in the lungs.
Life was the first series commissioned by the then Network Controller of BBC One, Peter Fincham, just weeks after he took up the post in March 2005. [4] It was reportedly one of the most expensive documentaries ever ordered by the broadcaster, with a budget of £10 million (though the BBC have never confirmed this figure). [5]
Life in a Day is a crowd-sourced documentary film comprising an arranged series of video clips selected from 80,000 clips submitted to the YouTube video sharing website, the clips showing respective occurrences from around the world on a single day, 24 July 2010.
The film opens with Mufasa's voice explaining that everyone is connected in the great circle of life. A montage of animals and a few clips from Symbiosis open to the song, Circle of Life. The focus of the main story is on Simba. He decided to show Timon and Pumbaa how another creature (man) is similarly forgetting how everyone is connected.
In the spring, clocks will move forward by an hour at 2 a.m. on the second Sunday in March, making it 3 a.m. and making the day an hour shorter.
In chronobiology, the circannual cycle is characterized by biological processes and behaviors recurring on an approximate annual basis, spanning a period of about one year. This term is particularly relevant in the analysis of seasonal environmental changes and their influence on the physiology, behavior, and life cycles of organisms.
In wild cereals and in the primitive domesticated einkorn, [2] emmer [3] and spelt [4] wheats, the husks enclose each seed tightly. Before the grain can be used, the husks must be removed. Before the grain can be used, the husks must be removed.