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All species of squashes and pumpkins are native to the Western Hemisphere, and the ancestral members of the genus Cucurbita were present in the Americas before humans. [3] Squash are important food plants of the original people of the region, ranking next to maize and beans in many precolonial American economies.
Male genitalia of Lepidoptera. The main component of the male reproductive system is the testicle, suspended in the body cavity by tracheae and the fat body.The more primitive apterygote insects have a single testis, and in some lepidopterans the two maturing testes are secondarily fused into one structure during the later stages of larval development, although the ducts leading from them ...
Reproduction (or procreation or breeding) is the biological process by which new individual organisms – "offspring" – are produced from their "parent" or parents. There are two forms of reproduction: asexual and sexual. In asexual reproduction, an organism can reproduce without the involvement of another organism.
This fall, learn about different types of pumpkins including heirloom varieties like Jarrahdale and Cinderella. They come in all shapes, sizes, and colors!
These scuba divers went underwater for some Halloween fun.
Watch this video for four creative ways to light your Halloween pumpkin. Jack-o’-lantern ideas. Now that your pumpkin is carved, let’s get it lit! Use a battery-operated candle.
Protists are a large group of diverse eukaryotic microorganisms, mainly unicellular animals and plants, that do not form tissues. [8] The earliest eukaryotes were likely protists. Mating and sexual reproduction are widespread among extant eukaryotes including protists such as Paramecium and Chlamydomonas.
In zoology, copulation is animal sexual behavior in which a male introduces sperm into the female's body, especially directly into her reproductive tract. [1] [2] This is an aspect of mating.