Webinhalation. occurs when the rib cage moves down and in and the diaphragm moves up. The pressure in the thoracic cavity is greater than atmospheric pressure and air moves out of the lungs. exhalation. In the experiment, we used a ___________ to … WebDec 5, 2024 · Do fishes get boners? They don’t have a penis, as such. Instead, they have modified a fin into a penetrating organ called a gonopodium. These penis-ish organs are tipped with an unpleasant set of claws, hooks ridges and spines. Why can’t you pee in the Amazon River? The candiru is a legendary monster.
Betta Fish Anatomy – Plus Male And Female Differences
WebMay 29, 2014 · When it's time to mate, the majority of the medusa species have a similar, unromantic way of going about things: The males release their sperm into the water en masse through a single orifice,... WebMost birds do not have a penis. Only ostriches (and related groups, like kiwi and tinamous), ducks, geese and swans have it. ... (the sole exception amongst the bony fish is the … danita thompson lmft
Does a starfish have a penis? - Answers
WebFISH GENITALIA. Although in most fish the fertilization is external, some have structures or pseudopenises to put the sperm inside the female. They have the pelvic fins modified … WebFemale and male betta fish have very similar makeups and are hard to tell apart when they’re young. The one pictured above is a male, but we’ll also cover some unique features of both males and females below. External … WebAmong fish, a true cloaca is present only in elasmobranchs (sharks and rays) and lobe-finned fishes. In lampreys and in some ray-finned fishes, part of the cloaca remains in the adult to receive the urinary and … birthday door delivery