The difference between internal and external fertilization is that internal fertilization occurs inside the body, whereas external fertilization happens outside the body. Fertilization is the process by which a sperm cel... More » Science Biology

Animals that live in water, such as amphibians and fish, use external fertilization. The term refers to the process by which the egg is fertilized by the sperm in an open environment and not within the bodies of the orga... More » Science Biology Zoology

Disadvantages of external fertilization include a reliance on water and the large amount of wasted sperm and eggs that never reach a corresponding gamete, even when the organisms releasing the eggs and sperm are in close... More » Pets & Animals Animal Reproduction
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Examples of external fertilization can be seen in frogs, some marine invertebrates and many types of fish. External fertilization happens when sperm fertilize eggs outside of the body of the female animal. Often, in orde... More » Science Biology

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The difference between internal and external development is the fact that internal development refers specifically to sexual organs, while external development refers to the many physical changes that occur in an organis... More » Business & Finance Business Resources Advertising

While external customers place orders for a good or service and ultimately pay for it, internal customers do not. External customers are also external to the organization supplying the good or service, but most internal ... More » Business & Finance Business Resources