WebMay 17, 2024 · spiracle. 1. Essentially a vestigial gill slit located between the mandibular and hyoid arches in adult sharks, rays, and some primitive bony fish, and visible as an opening behind the eye. 2. One of the pores on the body of an insect at which the tracheae open to the outside. Spiracles are found on the thoracic and abdominal segments, and ... Webcirculatory system of a generalized insect. The circulatory system is an open one, with most of the body fluid, or hemolymph, occupying cavities of the body and its appendages. The one closed organ, called the dorsal vessel, extends from the hind end through the thorax to the head; it is a continuous tube with two regions, the heart or pumping ...
Monarch Watch : Biology : Anatomy
WebAnatomy. EGG. Each butterfly egg is surrounded by a hard outer shell, called the chorion, to protect the developing larva. The shell is lined with a layer of wax, which helps keep the egg from drying out. Each egg has one to many tiny funnel-shaped openings at one end, called micropyles. Since eggs get their hard shell before they are ... WebJun 8, 2024 · The circulatory system can then carry the oxygenated blood to the other parts of the body. In animals that contain coelomic fluid instead of blood, oxygen diffuses … rayton stock price
Spider anatomy - Wikipedia
Web— John A. Long, Scientific American, 20 May 2024 Sturgeon have holes in their sides called spiracles, which help them breathe along with their gills. — National Geographic , 25 Feb. 2024 Also, an up-close look reveals intake vents ( spiracles ) behind the eyes for … WebStudy free Biology flashcards about Insects created by KiahnaL to improve your grades. Matching game, word search puzzle, and hangman also available. ... Definition; entomology: branch of science dedicated entirely to studying insects structural (anatomical) ... spiracles: air holes in each segment of the abdomen tracheal tubes: WebApr 5, 2024 · Spiracles are breathing openings found on the surface of insects, certain cartilaginous fish such as certain species of sharks, and stingrays.Hammerheads and chimeras don't have spiracles. In fish, … simply noise brown