Question 1 A) Which of these statements could explain why inverted trophic pyramids are sometimes found in fossil assemblages with many predators at the top of the food chain? a) Cretaceous carnivores were cold-blooded species and did not need so much food b) The carnivores regularly ate each other creating new trophic level c) Cretaceous predators were able to eat plants in addition to the meat d) The species of the lower trophic levels are either less well preserved or we have not identified all the trophic levels of the time B) Pollination led to the co-evolution of flowers and insects a) True b) False C) Zebra mussels are called invasive species because they invade plumbing and other man-made structures. a) True b) False D) Most energy is lost between trophic levels a) True b) False E) Perfect curves of logistic population growth over time are common in the natural world. a) True b) False .

1. Question 1
A) Which of these statements could explain why inverted
trophic pyramids are sometimes found in fossil
assemblages with many predators at the top of the food
chain?
a) Cretaceous carnivores were cold-blooded species and
did not need so much food b) The carnivores regularly ate
each other creating new trophic level
c) Cretaceous predators were able to eat plants in addition
to the meat
d) The species of the lower trophic levels are either less
well preserved or we have not identified all the trophic
levels of the time
B) Pollination led to the co-evolution of flowers and insects
a) True
b) False
C) Zebra mussels are called invasive species because
they invade plumbing and other man-made structures.
a) True
b) False
D) Most energy is lost between trophic levels
a) True
b) False

2. E) Perfect curves of logistic population growth over time
are common in the natural world.
a) True
b) False