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Results for: 'Presumed evolutionary branchings in the primate family tree Animation.'
Green alga life cycle Animation
By: HWC, Views: 2367
Chlamydomonas zoospores are haploid flagellated cells. As long as conditions are favorable, these cells reproduce asexually. As many as sixteen cells may form by mitosis within a parent cell. Daughter cells escape when the cell wall ruptures. When conditions become less favorable, the...
By: HWC, Views: 1675
A section from a DNA double helix The backbone of each DNA strand consists of alternating deoxyribose sugars and phosphate groups. The two strands run in opposite directions. One runs from the 5' to 3' direction, the other in the 3' to 5' direction. Think of the deoxyribose units o...
By: Administrator, Views: 10551
Everything you need to know about your heart
By: Administrator, Views: 10722
Interneurons: - Are called central or associative neurons. - Located entirely within the central nervous system. - They function to mediate impulses between sensory and motor neurons.
Inflammatory response Animation
By: HWC, Views: 4290
Any tissue damage or bacterial invasion can bring about inflammation. The inflammatory response can be triggered by an invasion of bacteria, or by a cut or other physical damage to cells. Chemicals, such as histamine, released by the bacteria or damaged cells. accumulate in the tissue. Thes...
Lung Sounds Animation (3 of 5)
By: Administrator, Views: 345
Respiratory rate is regulated by the respiratory center located in the medulla oblongata. Respiratory rates for some different age groups: Newborn 30 – 80/min 1st year 20 – 40/min 5th year 20 – 25/min 15th year 15 – 20/min Adult 12 – 20/min
Lung Sounds Animation (4 of 5)
By: Administrator, Views: 317
Respiratory rate is regulated by the respiratory center located in the medulla oblongata. Respiratory rates for some different age groups: Newborn 30 – 80/min 1st year 20 – 40/min 5th year 20 – 25/min 15th year 15 – 20/min Adult 12 – 20/min
By: HWC, Views: 4575
Overview of interactions in antibody-mediated and cell-mediated immunity Animation The antibody mediated immune response begins when a naive B cell encounters antigens from a pathogen, such as a bacterium. The B cell binds, processes, and displays this antigen. It is now an antigen-presenti...
By: Administrator, Views: 317
The male pelvis is shaped like a funnel, forming a narrower outlet than the female. The bones are generally thick and heavy and more suited for lifting and running.
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