- The graph shows the growth curve of a healthy plant and a plant infected with a fungus. If this trend continues, what will be the mass of the plant infected with the fungus at 12 months?
Your answer:
12
13
10
11
- If a single plant species is removed from a food web, then most likely--
Your answer:
dependent herbivores will have to find new food sources
carnivores will be unaffected by the loss
other plants will produce enough food for herbivores
an animal species will fill the unoccupied niche
- Which population would be most affected if the snake were removed from the food web?
Your answer:
hawk
mouse
grass
lizard
- According to the theory of natural selection, a species that lacks the variations necessary to adapt to a changing environment will most likely--
Your answer:
become dormant
become extinct
mutate
fossilize
- The graph shows the population relationship between a protist predator and its prey. If this relationship continues, the prey population will probably be eliminated by--
Your answer:
6h
9h
8h
7h
- The shark and the remora fish share a special relationship. The remora fish clean bacteria off of the shark. The fish gets food and the shark is cleaned of many parasites. What is this relationship called when both benefit?
Your answer:
parasitism
predator
commensalism
mutualism
- The graph shows the results of experiments with two species of duckweed, L. polyrrhiza and L. gibba. Which of these best explains why growth is LESS when the two species are grown together?
Your answer:
They attract more herbivores.
One grows faster than the other.
They compete for the same resources.
One simulates the growth of the other.
- The colorful petals of a flower benefit a plant by--
Your answer:
attracting insect pollinators
absorbing radiant energy
protecting it from predators
catching windblown pollen
- When organisms die, what prevents the environment from being overwhelmed by the bodies of these organisms?
Your answer:
Rainwater washes them away.
Other organisms use them as food.
Sunlight releases energy from their tissues.
Natural and controlled fires burn them.
- Bufo woodhousei and Bufo cognatus are two closely related species of toads. In areas where their ranges overlap, the toads will remain separate species if they--
Your answer:
eat the same foods
breed in different seasons
have different color patterns
eat different types of insects