Question

К идиоадаптациям относят: 1) разные формы клювов у птиц. 2) различие в окраске придонных видов рыб. 3) альвиолярное строение легких у млекопитающих. 4) различные способы опыления цветков у покрытосеменных. 5) отсутствие пищиварительной системы у свинного цепня. 6) появление второго круга кровообращения.​

Answer 1

124, но уверена не до конца.

Answer 2

Adaptations in Birds' Beaks

Different forms of beaks in birds are considered adaptations that enable them to perform specific functions. Birds have evolved a wide variety of beak shapes and sizes to suit their feeding habits and ecological niches. For example, some birds have long, slender beaks that are well-suited for probing into flowers to extract nectar, while others have strong, hooked beaks that allow them to tear into flesh or crack open seeds [[1]].

Differences in Coloration in Bottom-Dwelling Fish Species

The difference in coloration among bottom-dwelling fish species can be considered an adaptation to their environment. Many bottom-dwelling fish have camouflage coloration, which helps them blend in with their surroundings and avoid predation. The coloration can vary depending on the type of substrate they inhabit, such as sandy or rocky bottoms [[2]].

Alveolar Structure of Lungs in Mammals

The alveolar structure of lungs in mammals is an adaptation that allows for efficient gas exchange. Mammals have alveoli, which are tiny air sacs in the lungs where oxygen is taken up and carbon dioxide is released. The large surface area of alveoli and their thin walls facilitate the exchange of gases between the respiratory system and the bloodstream [[3]].

Various Pollination Methods in Angiosperms

Angiosperms, or flowering plants, have evolved various methods of pollination. Some common methods include wind pollination, where pollen is dispersed by the wind, and insect pollination, where insects transfer pollen from one flower to another. Insect pollination can occur through various mechanisms, such as bees collecting nectar and inadvertently transferring pollen, or butterflies and moths being attracted to flowers by their color and scent [[4]].

Absence of Digestive System in Tapeworms

Tapeworms, specifically the pork tapeworm (Taenia solium), do not have a digestive system. Instead, they absorb nutrients directly through their body surface. Tapeworms have a specialized structure called a scolex, which attaches to the host's intestine, and a long, segmented body called a strobila. The strobila is made up of proglottids, which contain reproductive structures. The tapeworm absorbs nutrients from the host's digested food as it passes through the intestine [[5]].

Evolution of the Second Circulatory System

The evolution of the second circulatory system, known as the double circulation system, is considered an adaptation that allows for more efficient oxygen delivery in vertebrates. In this system, blood is pumped to the lungs for oxygenation and then returned to the heart before being pumped to the rest of the body. This separation of oxygenated and deoxygenated blood allows for a higher oxygen supply to the tissues, enabling more active lifestyles [[6]].

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