Which animal does not have kidneys?

Animals having No kidneys: If I answer this question like the animals as we know that Animals are the two major groups. Some invertebrates, notably echinoderms, cnidarians, and sponges, have no organs to which an excretory function can be confidently ascribed.

Do all creatures have kidneys?

All vertebrate animals have kidneys, similar to that of humans. The functional unit of the kidney is the nephron, which filters the blood of small molecules and ions, reclaims the needed amounts of useful material, and excretes surplus or waste molecules via urine.

What animal does not have any organs?

Ask Trichoplax. This tiny multicellular animal — only a millimeter across — has nothing recognizable as muscle or nerve cells. In fact it has no organs at all.

Do amphibians have kidneys?

Amphibians. The amphibian kidney also functions chiefly as a device for excreting excess water. When in water, the frog’s bladder quickly fills up with a hypotonic urine. On land, this water is reabsorbed into the blood helping to replace water lost through evaporation through the skin.

Do monkeys have kidneys?

The results indicated that there were six to eight arterial segments in the monkey kidney, each supplied by a segmental artery. The gross renal vascular system of the monkey was compared to, and contrasted with, human and canine renal vascular anatomy.

Do dolphins have kidneys?

Renal System Unlike human kidneys, which are just two singular renules (or balls), dolphins have two kidneys with multiple renules. These renules all function as separate kidneys which help filter out the higher amount of salt content they must deal with in their daily environment.

Which animal have no heart and no brain?

Jellyfish
Jellyfish is an animal that has no brain or even a heart.

Do snakes have kidneys?

The urinary system of snakes consists of paired lobulated kidneys and ureters that empty into the dorsal urodeum.

Do monkeys have lungs?

Airway Gross and Microscopic Anatomy In both humans and rhesus macaque monkeys (Macaca mulatta), the left lung is divided into two distinct lobes. In the rhesus monkey, the right lung is divided into four lobes, whereas the human right lung is divided into three lobes.

Do whales pee?

When it comes to pee production, whales are world champs. A single fin whale is thought to produce around 1,000 liters (260 gallons) of urine each day — enough to fill a 10-by-6-foot kiddie pool. Whales combine their champion urination with deep dives and long migrations.

Do whales have kidneys?

Whales, for example, have the specialized kidneys but need far less water than land mammals. Whales get water mostly from the small sea creatures, like krill, that form much of their diet.