How are the amphibians and reptiles similar How are they different?


What are the adaptations of life on land?

The primary adaptations to life on land occurred in the Paleozoic 360-400 mya (million years ago) with the evolution of amphibians. Amphibians, a name derived from the Greek word amphibios (a being with a double life), live in fresh water as larvae and can move onto land as adults.

How did mammals adapt to terrestrial environments?

Lung breathing. In many cases, with the adaptation to the terrestrial environment, the mammals abandoned the cutaneous respiration of the amphibians and perfected the pulmonary respiration of the reptiles, generating an efficient respiratory system adapted to the requirements of this type of habitat.

How did reptiles survive in the desert?

Reptiles developed thick, scaly skin that helps conserve moisture inside their bodies, an essential feature that helps them survive not only on land, but in dry, desert areas as well.

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Why do reptiles live in dry areas?

Many reptiles live in dry areas where finding adequate drinking water is difficult. Water is essential to cellular function, and therefore to health. Cells shrivel and die without enough water.

Why don’t Reptiles need water to flush their waste?

Elimination also requires very little fluid because the waste is concentrated into tiny, semisolid bundles of uric acid that don’t absorb liquid and need very little fluid to be flushed from the body. Unlike their amphibious ancestors, reptile fertilization is internal and does not require water.

What are the osmoregulatory adaptations of terrestrial animals to water loss?

Osmoregulatory Adaptations of Terrestrial Animals to Water Loss. Osmoregulatory Adaptations: Just like marine teleost, terrestrial animals are liable to water loss, but unlike in fishes where water loss is caused by osmotic removal of water, in terrestrial animals, it is caused by evaporation from permeable surfaces exposed to the atmosphere.

How are amphibians adapted to protect themselves from water loss?

The keratinous scales of reptiles and the cornified epithelium of mammals provide both physical protection and insulation against water loss. This explains why most of these animals can live successfully in hot, dry areas. Among all the terrestrial vertebrates, the amphibians are the least well adapted to this kind of water conservation.

How do osmoregulation adaptations reduce loss of water?

By Having A Waterproof Integument: The obvious way of reducing loss of water which is one of the forms of osmoregulatory adaptations, has been successfully developed by a number of groups such as the insects, reptiles, birds and mammals.

What is osmoregulatory adaptation of terrestrial animals?

Osmoregulatory Adaptations: Just like marine teleost, terrestrial animals are liable to water loss, but unlike in fishes where water loss is caused by osmotic removal of water, in terrestrial animals, it is caused by evaporation from permeable surfaces exposed to the atmosphere.

What are the physiological adaptations to meet the osmotic problem?

In terrestrial animals such as reptiles, birds, mammals and some crustaceans and annelids, the physiological adaptations to meet the osmotic problem are the following: (i) For water conservation the body is covered by means of a water proof covering which prevents the evaporation of water from the body.

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How did early mammals live differently?

Much like the rings of trees, growth rings in the tooth sockets revealed that early mammals led longer, slower-paced lives than researchers thought. Analysis of teeth dating back 200 million years suggests that the earliest mammals functioned like reptiles – leading less active but much longer lives.

What is an example of adaptation to a terrestrial environment?

Shells of certain animal embryos such as reptiles and birds are examples of adaptation to a terrestrial environment. The hard shell prevents the embryo from dying by providing physical protection outside of the body.

How do fish perform osmoregulation?

Furthermore, in fresh water organisms such as fishes undertake Osmoregulation through the release of excess water through the gills and through the excreting of large amounts of dilute urine. Solomon, P.E et-al (2011: 1072) adds that “these organisms tend to lose salts by diffusion through the gills into the water”.

What is osmoregulation in marine mammals?

The easiest way to understand osmoregulation is to account for the ways water and electrolytes enter and leave the organism. Water and electrolytes enter the animal through the ingestion of food and water. Compared to terrestrial mammals, marine mammals consume a water-rich diet of fish and marine invertebrates.

What is the only physiological adaptation to the environment?

This paper temperatures in the environment, so the only physiological will address these different physiological adaptations and thermoregulatory mechanism available is evaporation (Farid, explain how they work. 1989).

How are the kidneys of different vertebrates adapted for osmoregulation?

Variations in nephron structure and function equip the kidneys of different vertebrates for osmoregulation in their various habitats. Mammals that excrete the most hyperosmotic urine, such as hopping mice and other desert mammals, have exceptionally long loops of Henle. This maintains steep osmotic gradients, resulting in very concentrated urine.

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Are animals hyperosmotic in water?

Animals in Freshwater All freshwater animals are hyperosmotic to the water in which they live. They tend to gain water by osmosis and lose ions by diffusion, especially across their permeable gill membranes. These passive fluxes of water and ions tend to dilute their body fluids.

How long did it take for reptiles to recover from extinction?

The researchers also note that it took reptiles almost 10 million years to recover to previous levels of anatomical diversity. “That kind of tells you on the broad scheme of things and on a global scale how much impact, throughout the history of life, sudden environmental changes may have,” Simões said.

What is adaptation of animals?

What is adaptation of animals? What is adaptation of animals? The adaptation of animals and plants to their environment is a series of varied biological processes with varying purposes, but the general purpose is the continued survival of the species.

What adaptations do reptiles have to regulate body temperature?

Since reptiles have thin skin with little insulation and most do not produce heat internally to fuel their metabolisms, adaptations to regulate body temperatures (thermoregulation) are very important.

What adaptations do marine mammals have to drink seawater?

These adaptations include ways of reducing cutaneous and respiratory evaporative water loss along with a specialized kidney that allows them to drink seawater. However, while many if not most marine mammals can drink seawater not all do.

What are the adaptations of marine reptiles and mammals?

• Marine mammals excrete salt loads and urea from kidneys that have effective concentrating abilities, while gaining water from diet and metabolism. Marine reptiles and mammals are phylogenetically so distant from each other that their marine adaptations are rarely compared directly.