معلومات عن اسماء الحيوانات ذوات الدم البارد بالانجليزي

معلومات قصير موضوع انجليزي بحث تقرير بالانجليزي باللغة الانجليزية انشاء

موضوع عن الحيوانات الاليفة  وانواعها  اين تعيش ماذا ياكل مدة حياتها اسماء صغارها

تعبير عن الجمل بالانجليزي تعبير كتابي عن وصف حيوان اليف عبارات قصيره للاطفال

information about    paragraph معنى برزنتيشن  معلومات بسيطه  اسم  نطق كلمة معنى كلمة برجراف حيوان مفترس لاحم عاشب اليف متوحش وحيش الغابة موسوعة عالم الحيوانات برمائي كل شيئ عن تزاوج انواع الانجليزي  الشائعة معنى كلمة بالانجليزي اختصارات

معلومات عن الحيوانات بالانجليزي موضوع عن الحيوانات الاليفة بالانجليزي دورة حياتها

تغذية الحيوانات والحشرات على ماذا تتغذى كيف تتغذى الموسوعة تتذوق الطعام تصنيف

فوائد الجنس للصف الرابع للصف السابع الاول الثاني الثالث الخامس السادس الثامن التاسع كتابة  ذكر اضرار  معلومات طائر انواع  تربية قصة صفات حديقة الحيوانات

ذوات الدم الحار بالانجليزي ذوات الدم الحار من البشر ما هي ذوات صفات اصحاب الدم الحار

Cold-blooded animal does not control body temperature

Cold-blooded animals, or poïkilotherme, can not control their internal temperature by themselves, and are therefore at the mercy of the ambient temperature. Some have to warm up once the day comes, in order to resume their normal activity.

The cold-blooded animal can therefore withstand variations in body temperature, without suffering or dying of hypothermia. When its temperature goes down, its physiological activity slows down, like the speed of the cardiac drives. His energy demand is reduced and if he is no longer active, he will be able to survive on his energy reserves for a longer time.

Since they can not regulate their temperature, through sweat or tremors, they use the elements around them to achieve a stable body temperature. Once the temperature of the body is appropriate, the animal can go about its business normally.

An ectothermic animal is an animal whose heat is obtained by external means, such as the alligator. This is why many cold-blooded animals will use the sun to warm up once the cold night has passed. They are therefore often ectotherms, but warm-blooded animals are too.

As the environment is used to regulate the heat of the body, the cold-blooded animal will therefore use the sun to heat, the fish adjust their depth according to the temperature of the water. Desert insects hide under the sand or use the friction of the wings or other limbs to warm up at night. Butterflies are attracted to light, but they also like the heat it produces.

Photo of spotted salamander

The salamander is a cold-blooded animal

When the temperature drops too much, cold-blooded animals become lethargic and this makes them vulnerable. This is why they will usually hide so as not to become too easy prey for predators. The frog will hide under a rock, a stump or other object under which it can fit. If the cold lasts a long time, as for the winter period, the activity of the organs will be so slow, that once spring comes, the amphibian resumes its activity as if everything was normal.

This is an advantage because when the environment becomes colder, the animal is not at risk of hypothermia. However, when it is in a state of lethargy caused by the cold, the animal is a very easy prey to capture. If the habitat where they live becomes colder all the time, a race of cold-blooded animals can easily disappear.

This is why when we observe small animals, such as salamanders or toads, it is important to put them back where we find them. If you move the animal and its metabolism is slow, it is possible that it is not able to return to hide once your observations are completed. Cold-blooded animals are very sensitive to their environment which has a direct influence on them.