Question

Установите последовательность эволюции развития органов выделенияА)метанефридииБ)возникновение почекВ)мальпигиевы сосуды, зелёные железыГ)протонефридииД)сократительная вакуоль

Answer 1

Д (сократительная вакуоль) - г (протонефридии) - а (метанефридии) - в (мальпигиевы сосуды) - б (почки).

Answer 2

Evolutionary Sequence of Excretory Organs Development

The evolutionary sequence of the development of excretory organs can vary among different organisms. However, based on the available information, here is a possible sequence of the development of excretory organs:

A) Metanephridia: Metanephridia are excretory organs found in some invertebrates, such as annelids and mollusks. They consist of a tubule system that removes waste products from the body cavity and excretes them outside the organism. Metanephridia are considered to be a primitive form of excretory organ.

B) Emergence of Kidneys: The emergence of kidneys marks a significant step in the evolution of excretory organs. Kidneys are more complex organs found in vertebrates, including mammals, birds, reptiles, and fish. They play a crucial role in maintaining the body's internal environment by filtering waste products from the blood and regulating water and electrolyte balance.

C) Malpighian Tubules and Green Glands: Malpighian tubules are found in insects and some other arthropods. They function as excretory and osmoregulatory organs, removing waste products and maintaining the balance of water and ions in the body. Green glands, also known as antennal glands, are excretory organs found in crustaceans, such as lobsters and crayfish. They perform similar functions to malpighian tubules.

D) Protonephridia: Protonephridia are excretory organs found in flatworms, such as planarians. They consist of a network of tubules that remove waste products from the body and regulate water and ion balance. Protonephridia are considered to be a simpler form of excretory organ compared to metanephridia and kidneys.

E) Contractile Vacuoles: Contractile vacuoles are organelles found in certain single-celled organisms, such as protists. They are involved in osmoregulation and excretion, expelling excess water and waste products from the cell. Contractile vacuoles are not considered true excretory organs but play a role in maintaining cellular homeostasis.

It's important to note that this sequence represents a general overview and may not apply to all organisms. Evolutionary processes can vary, and different organisms may have different adaptations for excretion and osmoregulation.