It may have to do with more olden stereotypes, where women were seen to be caretakers of the family, while the male went out to work and earn for them. Many jobs back then were dependent on strength, so as long as men fulfilled their role of earning money (through labor) their looks were seen as little importance. Let me elaborate. If a man could care for his family, he was seen as admirable, or at least acceptable to society. If he couldn't earn, then he was deemed worthless. So a man's honor depended on how his strength was. In this sense, looks didn't really contribute to a man's place in society. Women, on the other hand, were the face of the family. Men would show them off to friends, so if women weren't decently attractive, then it wouldn't be very good for the male. Other than housework, the woman's job is to literally sit still and look pretty; thus the reason behind corsets, bonnets, petticoats and so on. You won't see society asking men to wear such complicated things, because their main job is to work. It would be unsuitable for a blacksmith to be wearing tight suits while hammering, no? I hope this gave you some general insight.
Answer:
El Proyecto Genoma Humano (PGH) fue un proyecto internacional de investigación científica con el objetivo fundamental de determinar la secuencia de pares de bases químicas que componen el ADN e identificar y cartografiar todos los genes de un genoma humano promedio desde un punto de vista físico y funcional, incluyendo
Explanation:
The correct answer is D. Tortoises and snails have analogous organs, and they don't belong to the same species.
Answer:
External fertilization usually occurs in aquatic environments where both eggs and sperm are released into the water. After the sperm reaches the egg, fertilization can then take place.External fertilization is most common in amphibians and fish.
Explanation:
Some animals produce offspring through asexual reproduction while other animals produce offspring through sexual reproduction.
Sexual reproduction starts with the combination of a sperm and an egg in a process called fertilization. This can occur either outside the bodies or inside the female.There are two types of fertilization in sexual reproduction. Internal fertilization and external fertilization.External fertilization is a common and widespread in aquatic environments where both eggs and sperm are released into the water. After the sperm reaches the egg, fertilization takes place. Most external fertilization happens during the process of spawning where one or several females release their eggs and the male(s) release sperm in the same area, at the same time. The spawning may be triggered by environmental signals, such as water temperature or the length of daylight. Nearly all fish spawn, as do crustaceans (such as crabs and shrimp), mollusks (such as oysters), squid, and echinoderms (such as sea urchins and sea cucumbers). Frogs, corals, mayflies, and mosquitoes also spawn
