I believe they are called endothermic.
Endotherms also called warm blooded animals are those that maintain a constant body temperature independent of the environment. They primarily includes, birds and animals, but some fish are also endothermic. On the other hand ectothermic animals or cold blooded animals are those whose regulation of body temperature depends on the external sources such as sunlight.
What might cause this population to enter logistic growth? resources become scarce birth rate increases emigration decreases carrying capacity is increased.
The spiders have became resistant to the pesticide.
C=C, the double carbon bond creates a kink in the chain of carbons, and prevents the fats from stacking neatly and forming a solid. The double carbon bonds present in canola oil are why it is a liquid at room temperature, while the lack of such bonds in butter allows for the molecules to lay flat on one another, making butter a solid.