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Which of these characteristics allows an owl to see well at night?
What do red blood cells carry throughout the body?
What system helps animals exchange carbon dioxide and oxygen?
Which is the sheet-like muscle at the bottom of a human chest?
What can an animal that eats berries and fish be called?
What body system is the human heart part of?
What process does a starfish use to grow a new organism when it is cut...
What is the period of growth before birth called?
What fluid-filled sac surrounds the human embryo?
What is the normal response of a rabbit when spotting a fox?
What is an automatic response that doesn't involve the brain called?
What is the process of learning through mistakes called?
What is an action that one animal uses to influence or inform another...
Which of these does a wolf communicate through?
What is a group of animals of the same species living and working...
What do we call an area that an animal defends from other animals?
What is the outside covering of a plant's root called?
Which of these structures allows plants to grow even in cooler areas?
What kind of plant stem is soft and green?
What is the stage in humans where the body matures physically?
What type of behavior is passed on from generation to generation?
What do poachers seek when they kill elephants for their tusks?
What are the single thread-like cells on the root epidermis called?
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