Animals can be classified according to their mode of thermoregulation. sort the animals below, indicating their likely thermoregulatory strategy. note that poikilotherms are sometimes referred to as heterotherms.

animals: eagle coyote butterfly salamander walrus arcticshrimp freshwatercatfish
categories: homeothermic endotherm, homeothermic ectotherm, poikilothermic ectotherm

Explanation:  Eagles   are endotherm and homoeothermic.

Coyote are endotherms and homoeothermic.

Walrus are Endothermic and homoeothermic.

The above organisms maintain constant internal body temperature irrespective of fluctuations  in surrounding temperature.

Artic shrimp are ectotherms; and homoeothermic. Despite the fact that it has  negligible source of intenal heat, its environmental temperature is relatively stable, therefore it  is both ectotherms and homoeothermic.

Butterfly, freshwater catfish, Salamander are Poikilothermic.  These organism’s body temperature fluctuates with  the immediate  surrounding temperature. They lack internal body temperature.

the level of progesterone is low at the pre-ovulatory phase of the cycle but it gradually increases and the levels are high at the luteal phase. if pregnancy occurs, the level of progesterone will be high throughout the pregnancy.

if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.