Pericardium is a membrane that surrounds the heart and the roots of the blood vessels. It is composed of two layers: the serous layer and the fibrous layer.
The Pericardium keeps the heart in place and in proper working order. Any disorders that occurs in the pericardium will also affect how the heart works.
Inflammation of the pericardium may be a result of infection, heart attack, heart surgery, and other medical side effects.
<span>Trophic level is level in the movement of energy through an ecosystem. It describes the organism's feeding status in an ecosystem.
</span>An organism that feeds at several trophic levels is an example of a carnivore (<span>animal that gets food from killing and eating other animals.).</span>
Biotic Factors depend/rely on abiotic factors because living things (biotic) need nonliving things (abiotic) to survive. Biotic rely on other Biotic factors because they need the food and resources from other living things.
For example, we (biotic factors) need energy from the sun and oxygen/air ,which is abiotic factors, to live and grow. Just like plants (biotic) need the sun's energy (abiotic) to help it grow.
I hope u understand me. Sorry If u don't
<span>Chicks hatching from eggs is an innate behavior. Innate
behavioral adaptations are the result of millions of years of evolution. This
type of behavior is already "hard-wired" in the nervous system of
organisms and is usually inflexible. This is where a certain given stimulus triggers
the exact same response over particular organisms through time. The same adaptation
goes for other species that are naturally inclined to walk hours after their
birth, like giraffes and elephants do. It is in a way nature's natural
adaptation for species to survive through the course of time.</span>
