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How can the fact that fishes and dolphins have similar organs and similar general shape be explained?
Dolphins and Fishes have similar organs and shape because although they have phylogenetically distant ancestors they face similar environmental pressures since they share the same habitat (water). Thus by undergoing genetic variability and natural selection some similar features, for instance, the hydrodynamic body and the presence of fins, were incorporated into these animals.
Nutrients and the Soil Early experiments on mineral uptake were performed by Hoagland, Stout and Amon in 1923. They showed that minerals were taken up from the soil primarily
Organ level -Level of body organization When organs work together to perform a specific function we have the highest level of body organization i.e. the organ system level of bo
Anemophily - Cross-pollination It is also commonly referred to as wind pollination, i.e., the pollen grains are carried through wind currents. To ensure good pollination t
How are gases exchanged in sponges? The gas exchange in sponges occurs by diffusion from the external to the cells that absorb molecular oxygen and release carbon dioxide.
What is Phylum Annelida - Segmented Worms? Members of this Phylum are commonly known as the segmented worms. The body of a segmented worm is made of many individual ring-like s
Is it possible that an X chromosome of a woman can have come from her father? It is not only possible that an X chromosome of a woman is from her father, it is certain. Every w
Define Deuterostomes in animal kingdom? Coelomate animals are thought to have separated into two divergent lines of evolution in terms of the way embryos develop. In the embryo
F o wl pox Fowl pox is a contagious disease of birds, caused by a member of family Poxviridae, characterized by wart-like nodules on the skin and diphtheritic necrotic membra
1. A man with normal pigment, whose father was an albino, marries an albino. What chance is there that their first child will be an albino? 2. A man with normal pigment marries
Illustrate the name of surgical needle The surgical needle is comprised of 3 parts: the needle point, the needle body, and the swaged (press-fit) end. Needle may be broadl
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