Question: If platypus and Echidna are mammals that reproduce by laying eggs, then platypus and Echidna are mammals that reproduce by what? Answer choices: - hospital visits - cesarean sections - organs - warm-blooded - fur and fat - live birth - competition - laying eggs
Answer: laying eggs

Question: If mussels have a circulatory system, then what have a circulatory system? Answer choices: - protist - fur seals - veins - mammals - animals - bacteria - mussels - sharks
Answer: mussels

Question: If the rarity of a species increases harm to population exponentially, then if a species is rare, harm to it's population increases or decreases? Answer choices: - drought - Pesticides - constant - increases - stays the same - influenza - deforestation - decreases
Answer:
increases