(The earth, like the other planets, is subject to these same laws of movement; it endures a perpetual, internal struggle between its basic elements: the sea and the land seem to be eternally at war, and each instant produces fresh combinations. …… Human beings, dwelling in a place so ...
, including the skin and eyes and ears, receives messages from the environment and sends them to the brain. the urinary system produces urine and sends it out of the body through the kidneys, ureters, bladder, and urethra. ■ medical terminology: a short ...
The male reproductive system also produces hormones such as testosterone, which play a key role in male development. However, those organs do not function fully until puberty. This is a period in which a child begins the physical transformation into adulthood. Puberty kicks off when your ...
Define male reproductive system. male reproductive system synonyms, male reproductive system pronunciation, male reproductive system translation, English dictionary definition of male reproductive system. Noun 1. male reproductive system - the reproducti
The female reproductive system consists of the following structures, as shown in Figure 1: The ovary is the organ that produces ova (singular, ovum), or eggs. The two ovaries present in each female are held in place by the following ligaments: The broad ligament is a section of the ...
Integumentary System Theintegumentary systemprotects the internal structures of the body from damage, prevents dehydration, stores fat, and produces vitamins and hormones. The structures that support the integumentary system include skin, nails, hair, and sweat glands. ...
The genital arch produces a white granular, solid substance of unknown function. The spermatophore is a closed capsule made up of two separable coats. The accessory glands have the appearance of a compound tubulo-acinar type, the larger pair opening by a common duct into an open ejaculatory ...
1. (Biology) biology any of various processes, either sexual or asexual, by which an animal or plant produces one or more individuals similar to itself 2. (Art Terms) a. an imitation or facsimile of a work of art, esp of a picture made by photoengraving b. (as modifier): a reprod...
(about1millionatbirth) About350-500maturefolliclesovulateduringthereproductivelifetimeofmostwomenFunctionoftheOvaries Oogenesis–processofmeiosisthatproducesoneovaandthreesmallerpolarbodiesthatdegenerate Productionofestrogenandprogesterone Estrogencausesdevelopmentandmaintenanceofsecondarysexcharacteristics ...
The new plant produces seeds. 新植物产出种子 A person grows plants from the new seeds. 人们从这些新植物产生的种子来种植庄稼。 The new plants will have genetic characteristics that make them more nutritious or resistant to pests, diseases or climate factors, for example. ...