Answer: Characteristics: The fins are supported by rays, as the name indicates. In contrast to the cartilaginous fish they have a rigid skeleton. The swim bladder is also a unique feature of most ray-finned fish, enabling them to maintain buoyancy as they move up or down in the water.
Red blood cells do not have a nucleus.
It does not consist of a cell membrane or a cytoplasm.
It simply only transports oxygen around the body.
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The sigmoid colon, which begins in front of the pelvic brim, is a section of the large intestine that is located in the pelvic cavity.
The sigmoid colon typically measures 25 to 40 cm in length (10 to 15.75 in). As a continuation of the descending colon, the sigmoid colon is a "S"-shaped section of the large intestine that starts in front of the pelvic brim and changes into the rectum at the level of the third sacral vertebrae.
<h3>The large intestine is it located in the pelvic cavity?</h3>
The urine bladder, the remainder of the large intestine (the bottom region), and the internal reproductive organs are all located in the pelvic cavity, which is the lower part.
<h3>Which digestive system organ is located in the pelvis?</h3>
The inferior portions of various abdominal viscera are located in the larger pelvis (terminal ileum, cecum, sigmoid colon).
<h3>Where in the abdominal cavity is the big intestine?</h3>
From the ileocecal junction to the anus, the large intestine continues the ileum for 1 to 1.5 meters. The majority of the large intestine is found in the abdominal cavity, and the remaining part is found in the pelvic cavity.
learn more about large intestine here
<u>brainly.com/question/3476947</u>
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Answer:
Selectively permeable means a membrane allows the passage of some molecules or ions and inhibits the passage of others.
Explanation:
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