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The eggs have an average diameter of 1 millimetre (0.039 in). The eggs are generally surrounded by the extraembryonic membranes but do not develop a shell, hard or soft, around these membranes. Some fish have thick, leathery coats, especially if they must withstand physical force or desiccation. These type of eggs can also be very small and ...
The genital papilla (urogenital/genital pore) is a small, fleshy tube behind the anus present in most teleost fish, from which the sperm or eggs are released; [2] the sex of a fish often can be determined by the shape of its papilla.
Trypauchen vagina, commonly known as the burrowing goby, is a species of eel goby found in the Indo-Pacific region. It has an elongated body about 20 to 22 cm (7.9 to 8.7 in) in length. It is reddish-pink in color and possesses distinctive pouches in the upper edges of its gill covers.
Cloaca of a red-tailed hawk. A cloaca (/ k l oʊ ˈ eɪ k ə / ⓘ kloh-AY-kə), pl.: cloacae (/ k l oʊ ˈ eɪ s i / kloh-AY-see or / k l oʊ ˈ eɪ k i / kloh-AY-kee), or vent, is the rear orifice that serves as the only opening for the digestive (), reproductive, and urinary tracts (if present) of many vertebrate animals.
All amphibians, birds, reptiles, [22] some fish, and a few mammals (monotremes, tenrecs, golden moles, and marsupial moles) have this orifice, from which they excrete both urine and feces in addition to serving reproductive functions. [23] Excretory systems with analogous purpose in certain invertebrates are also sometimes referred to as cloacae.
Fact No. 5: Your vagina isn't supposed to be odor-free. Despite the frequent use of douches and other feminine deodorizing products, Streicher points out that it's "normal for a vagina to have a ...
“The vagina is self-cleaning…there's no need to do anything that would potentially disrupt the vaginal flora and the normal pH environment of vagina,” explains Dr. King. Basically, you’re ...
V = vagina VD = vas deferens Head of a mating Helix pomatia showing the everted penis (P), and the dart sac (S) in the process of shooting a love dart (D). Head of Helix pomatia after mating with everted vagina (V) and penis (P). Pulmonate land gastropods are simultaneous hermaphrodites and their reproductive system is complex. It is all ...