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Results for: 'Anatomy and Chemical Makeup of a Single Hair (Animation)'
By: Administrator, Views: 10732
Inflammation is caused by a number of physical reactions triggered by the immune system in response to a physical injury or an infection. Inflammation does not necessarily mean that there is an infection, but an infection can cause inflammation.
Brief Summary on Photosynthesis - Animation
By: HWC, Views: 6748
Can increase its weight by 150 pounds as it grows. Where does the new tissue come from? From the soil? From water? Or possibly from the air? The amazing truth is that new material. comes from an invisible gas in the air. In the process of photosynthesis, plants capture carbon dioxide ga...
By: Administrator, Views: 10740
Status epilepticus (SE) is a single epileptic seizure lasting more than five minutes or two or more seizures within a five-minute period without the person returning to normal between them. Previous definitions used a 30-minute time limit. The seizures can be of the tonic–clonic type, with a re...
By: Administrator, Views: 11058
With a sudden meniscus tear, a pop may be heard or felt in the knee. After the initial injury, pain, swelling, and tightness may increase over the next few days. The most common knee injury is the torn meniscus. Although a torn meniscus can happen to anyone, this injury occurs most often to athle...
By: HWC, Views: 6537
The slight positive charge of a hydrogen atom in a water molecule can attract an atom with a slight negative charge, such as the nitrogen in a molecule of ammonia. This forms a hydrogen bond between the two atoms. Hydrogen bonds join the two strands of a DNA molecule. Although hydrogen bo...
By: Administrator, Views: 517
Muscles responsible for trunk and abdominal movement.
Interspecific Competition Relationship - Competitive & Niche Differentiation
By: HWC, Views: 7439
In an environment with limited resources, any organisms that utilize the same resources will be in competition with each other. For example, let's look at two competing species of paramecium, a single-celled organism that feeds on bacteria. If we raise each of these species in isolation, both...
By: Administrator, Views: 273
Opposition is a composite of the following two motions: Rotation of the thumb into pronation so that the pulp fingers of the thumb and index fingers face one another. Abduction or lifting of the thumb away from the palm of the hand (palmar abduction).
By: Administrator, Views: 11889
The brain’s cerebral cortex is the outermost layer that gives the brain its characteristic wrinkly appearance. The cerebral cortex is divided lengthways into two cerebral hemispheres connected by the corpus callosum. Traditionally, each of the hemispheres has been divided into four lobes: front...
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