6TH GRADE SCIENCE HELP ME FINISH MY LAST QUESTION OF SCHOLL!!!!!!!! YAYYYYYYYYYYYYYYY 21PT
Please Help Explain the differences between internal and external fertilization and the advantages and disadvantages of each reproductive strategy. explain in detail plz help will mark as brainliest for good answer :) DOES NOT NEED TO BE LONG
Anonymous it’s not b. It’s not even a multiple choice lol
http://www.google.com/#q=differences+between+internal+and+external+fertilization
I have the same question on my science test and I don't know the answer!!!
Sure, I'd be happy to explain the differences between internal and external fertilization, as well as the advantages and disadvantages of each reproductive strategy.
Internal Fertilization:
Internal fertilization is a reproductive process that occurs when the fusion of an egg and a sperm happens inside the body of the female organism. This is commonly observed in most mammals, including humans. Here are the advantages and disadvantages of internal fertilization:
Advantages:
1. Increased chances of successful fertilization: Since the sperm is deposited directly into the female reproductive tract, it has a higher chance of reaching and fertilizing the egg.
2. Protection of the developing embryo: Internal fertilization provides a more secure environment for the developing embryo inside the female's body, shielding it from environmental risks and predators.
3. Increased parental care: Internal fertilization often leads to increased parental care, as both parents are involved in the process. This helps ensure the survival and well-being of the offspring.
Disadvantages:
1. Limited offspring production: Internal fertilization involves the transfer of a limited number of sperm, reducing the chances of multiple fertilizations and subsequent offspring production.
2. Increased energy expenditure: The process of internal fertilization requires more energy from both males and females due to the complex reproductive structures, behaviors, and care needed for successful reproduction.
External Fertilization:
External fertilization is a reproductive process that occurs when the fusion of an egg and a sperm occurs outside the body of the female. This phenomenon is commonly found in aquatic organisms such as fish and amphibians. Here are the advantages and disadvantages of external fertilization:
Advantages:
1. Greater number of offspring: External fertilization allows for the release of a large number of eggs and sperm into the environment simultaneously, increasing the chances of fertilization and producing a higher number of offspring.
2. Reduced energy expenditure: Since external fertilization does not require the complex reproductive structures and behaviors associated with internal fertilization, less energy is expended by the organisms involved.
Disadvantages:
1. Increased vulnerability: With external fertilization, the eggs and sperm are exposed to external factors such as predators, changing environmental conditions, and potential damage, which can reduce the chances of successful fertilization and survival.
2. Lack of parental care: In most cases of external fertilization, there is minimal to no parental care provided for the eggs or developing embryos, leaving them more susceptible to predation and survival challenges.
In summary, internal fertilization offers greater protection and increased chances of successful fertilization, but it requires more energy and results in limited offspring production. On the other hand, external fertilization allows for a larger number of offspring but increases vulnerability and lacks parental care. The reproductive strategy chosen by different organisms is influenced by their evolutionary adaptations and environmental conditions.