Q: Fact: the first quarter phase of the moon occurs after the new moon
Question: Shortly after the moon is in ecliptical longitude with the Sun, one will see

A: a waxing crescent

Q: Fact: an animal requires enough nutrients to maintain good health
Question: If a deer is unable to eat regularly, or only eats that which lacks essential minerals, the deer may

A: experience failing health

Q: Fact: the mass of a planet causes the pull of gravity on that planet
Question: if these animals were planetary bodies, which of them would have the most gravitational pull?

A: a bull on the couch

Q: Fact: if a population decreases to zero then that organism is extinct
Question: Which of the following has a population of zero?

A:
Merriam's elk