Most likely is the postulation that larger plankton developed, whose corpses and droppings were large enough to actually make it to the sea floor. This opened up the mid-ocean and ocean bottom to new life forms that could take advantage of the new nutrient sources.
Distemper in cattle is caused by a virus. The virus is usually spread from animal to animal, the virus can originate in other animals and spread to cattle.
A person who keeps a domestic animal may not always be strictly liable for any that the animal inflicts. In some cases the owner may have done everything correctly and their animal can still inflict harm. For example if an animal comes on to their property. In this case they will likely not be liable.
It is caused by the bacterium Yersinia pestis, which is normally carried by fleas. So technically every animal who has fleas can carry the above bacterium, and therefore any animal may be carrying the black death. However this bacterium left Europe in the 19th century.
Trench foot is a medical condition that results from prolonged exposure to damp and unsanitary conditions, typically in trenches. It is not caused by an animal, but rather by prolonged exposure to wet and unsanitary environments.
Animal hibernation is triggered by changes in environmental factors such as temperature and food availability. The decrease in daylight and temperature signals to animals that it is time to conserve energy by entering hibernation. Hormonal changes also play a role in regulating hibernation.
The sudden appearance of most of the major animal phyla within the fossils early in the Cambrian period. This caused a sudden diversification of life.
The explosion of life during the Cambrian period, known as the Cambrian Explosion, is believed to have been driven by several factors. Increased oxygen levels may have allowed for more complex multicellular organisms to thrive, while the development of predation could have spurred rapid evolutionary adaptations. Additionally, the emergence of new ecological niches and the genetic innovations such as the development of hard shells and exoskeletons contributed to this diversification. Together, these factors created an environment conducive to unprecedented biological diversity.
Life on Earth is less diverse now than it was during the Phanerozoic Era. The Cambrian Extinction caused a sharp decline in biodiversity.
what caused this diversity in cultures
what caused this diversity in cultures
During the first period of the Paleozoic era, the Cambrian period, there was an explosion of biodiversity known as the Cambrian Explosion. Many new types of organisms evolved, including the first trilobites, mollusks, and brachiopods. This period marked the appearance of complex multicellular life forms and the development of hard parts like shells and exoskeletons.
The Cambrian Explosion, a period between about 540 and 530 million years ago when many major animal groups appeared in the fossil record. This is when animals first developed hard shells and skeletons, so they became much more easily fossilised. Nobody is quite sure what caused the Cambrian Explosion, but increased oxygen levels in the air after the melting of a huge ice age around 600 million years ago may have led to an increase in the size of animals in the oceans; in turn they developed skeletons and shells to support their larger bodies. The evolution of predators may have inspired prey animals to develop shells, as well. We do have fossils before the Cambrian Explosion, but these are simple, soft-bodied, small and rare, so the origins of animals are still shrouded in mystery.
The bomb squad preliminary investigation suggests that a faulty electrical wire caused the explosion.
TNT (the dynamite that caused the explosion) pop (the sound a small explosion might make)
stuff!
an explosion
An explosion is caused by fuel burning very rapidly. The products of combustion expand rapidly and with extreme force, and the result is what we call an explosion. So...if you put gasoline on a fire and it explodes, as it will, the explosion was caused by the fire.