By: M E Skeel
All cells, whether free living or part of a larger organism, need certain basic things to survive. If they are animal cells, they need oxygen for respiration and they must rid themselves of the waste gas, carbon dioxide. Plant cells must have access to carbon...
Introduction to aphids and cicadas: Order Homoptera
By: M E Skeel
Cicadas and aphids are bugs. The bugs were for years classified in the order Hemiptera, which means half-wings, and from there into two suborders: Homoptera and Heteroptera. In recent years, some taxonomists have elevated the two suborders to the status of full orders. Whether considered...
Do Organisms always Evolve into more Complex Forms
By: Robert Tesla
About one of the only things you can count on in this world is change. However change in organisms doesn't always occur in a positive direction. Evolution is another word for change, and we know for certain that dramatic evolutions have occurred in organisms over...
By: Brenda Nelson
Coyotes are a widely misunderstood wild canine that live in North and Central America. The best known coyote is a cartoon character who spent his time buying products in an effort to capture an elusive bird, the roadrunner. Of course, real coyotes do not go...
By: M E Skeel
The simplest multicelled animals, the sponges, have no nervous system, but they don't need one. Their life style is also simple: sit and sway in the currents while filtering food from the water. They don't need to find food or avoid predators so they have...
Protozoa: What are suctorial ciliates?
By: M E Skeel
Many single-celled animals live free in the water but others have a stalk and attach themselves to substrates. The ciliated protozoa that are classified as suctoria are specialised, stalked ciliates. The basic shape is an inverted bell for a body that is lined with spikey...
Introduction to the Hemiptera or true bugs
By: M E Skeel
Nothing annoys an entomologist as much as hearing insects called bugs. Only one order of insects deserves this name: the Hemiptera. Hemiptera means half-winged and in true bugs, the front halves of the forward pair of wings are usually sclerotised or hardened. The back halves...
Dinosaursbirds Crocodilians Alan Feduccia
By: Michael Reed - 612874
I do not agree that birds are dinosaurs because they do not have any common ancestor, as supported by many “evolutionary’ scientists, as well as some of the contemporary illustrations of some of meat-eating dinosaurs that are popular in many recent books. Although, they...
Understanding cell division
By: Anoshiya
A Reduction Division How does an organism with diploid body cells produce haploid gametes? MEIOSIS: A process of cellular division in which the number of chromosomes is reduced by half is responsible for these. This change occurs through a process called meiosis, the type of...
Overlooked facts about hemp
By: Paul Benhaim
How You May Benefit From Hemp Seed and Hemp Food Nutrition Hemp seed is the basis to legal, non-drug hemp foods around the world. Hemp foods include ice-cream, non-dairy milk, snack bars, pasta, sauces and more. It’s nutritional content is second to none. So...

 

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