Definition: A type of organism that cannot regulate its body temperature internally and instead relies on the temperature of its environment, often referred to as cold-blooded animals like reptiles and fish.

Example: Frogs are examples of poikilotherms, as their body temperature changes with the surrounding environment.

Definition: Describing an organism whose body temperature changes with the temperature of its environment.

Example: Reptiles are poikilothermic animals that rely on external heat sources to regulate their body temperature.

Definition: A type of tropical tree or shrub known for its beautiful flowers, often found in warm climates.

Example: The bright red flowers of the poinciana tree attract many visitors to the park.

Definition: A plant native to tropical America, known for its bright red leaves that look like petals and small yellow flowers in the center.

Example: During the holiday season, many people decorate their homes with poinsettias.

Definition: Having a shape that comes to a sharp end or tip.

Example: The cat has pointy ears that make it look very alert.

Definition: Something that can cause harm or illness if it is ingested, inhaled, or absorbed by living organisms.

Example: The plant is known to be poisonous, so it's best to avoid touching it.

Definition: A substance that can cause harm, illness, or death when it enters the body, often through chemical means.

Example: The detective found traces of poison in the victim's drink.

Definition: To harm or kill someone or something by giving them a substance that is toxic or harmful.

Example: The villain tried to poison the hero's drink.

Definition: Able to cause harm or death because it contains poison; toxic.

Example: Some mushrooms are poisonous and should not be eaten.

Definition: A type of tree found in southern Florida and the West Indies that has poisonous sap and can cause skin rashes when touched.

Example: Be careful not to touch the poisonwood tree, as its sap can cause a painful rash.

Definition: A small, dark red or black berry that grows on the pokeweed plant, which is often found in North America.

Example: The pokeberry is not safe to eat because it can be toxic.

Definition: A tall plant native to North America that has small white flowers and dark purple berries. The roots of this plant are poisonous, and its young shoots can sometimes be eaten after proper preparation.

Example: The pokeweed in the garden produced clusters of dark berries that attracted birds.