Global biomass is the total mass of living material, such as animals and plants, on Earth. A team of scientists...
GMAT Information and Ideas : (Ideas) Questions

Global biomass is the total mass of living material, such as animals and plants, on Earth. A team of scientists estimated the global biomass, by species, of various wild land mammals. The team found that the species with the highest global biomass is the ______
Which choice most effectively uses data from the graph to complete the sentence?
wild boar.
eastern gray kangaroo.
African bush elephant.
white-tailed deer.
Step 1: Decode and Map All Source Material
Part A: Passage Analysis Table
| Text from Passage | Analysis |
|---|---|
| "Global biomass is the total mass of living material, such as animals and plants, on Earth." |
|
| "A team of scientists estimated the global biomass, by species, of various wild land mammals." |
|
| "The team found that the species with the highest global biomass is the ______" |
|
Visual Data Analysis

- Visual Type & Title: Bar chart - "Top Four Species of Wild Land Mammals by Global Biomass"
- What It Shows: Y-axis: Global biomass (millions of metric tons), X-axis: Four mammal species, Range: 0-3.0 million metric tons, Data points: African bush elephant \(\approx 1.3\), eastern gray kangaroo \(\approx 0.6\), wild boar \(\approx 1.9\), white-tailed deer \(\approx 2.7\)
- Key Observations: White-tailed deer \(\gg\) all others (\(\approx 2.7\)), Wild boar = 2nd highest (\(\approx 1.9\)), African bush elephant = 3rd (\(\approx 1.3\)), Eastern gray kangaroo = lowest (\(\approx 0.6\)), Clear ranking: deer \(\gt\) boar \(\gt\) elephant \(\gt\) kangaroo
- Connection to Text: The graph provides the specific data needed to complete the sentence about which species has the highest global biomass.
Step 2: Interpret the Question Precisely
This is a fill-in-the-blank question asking us to choose the best logical connector. The answer must create the right relationship between what comes before and after the blank.
Step 3: Prethink the Answer
- Looking at the graph data, we need the species with the highest bar
- From my visual analysis, white-tailed deer clearly has the highest global biomass at approximately 2.7 million metric tons
- This is significantly higher than wild boar (\(\approx 1.9\)), African bush elephant (\(\approx 1.3\)), and eastern gray kangaroo (\(\approx 0.6\))
wild boar.
wild boar
✗ Incorrect
- According to the graph, wild boar has approximately \(1.9\) million metric tons of biomass
- While this is the second-highest amount, it's still significantly less than white-tailed deer's \(2.7\) million metric tons
eastern gray kangaroo.
eastern gray kangaroo
✗ Incorrect
- The graph shows eastern gray kangaroo has the lowest biomass of all four species at approximately \(0.6\) million metric tons
African bush elephant.
African bush elephant
✗ Incorrect
- The graph shows African bush elephant has approximately \(1.3\) million metric tons of biomass
- This ranks third out of the four species shown
white-tailed deer.
white-tailed deer
✓ Correct
- The graph clearly shows white-tailed deer has the highest bar at approximately \(2.7\) million metric tons
- This is significantly higher than any other species and directly matches what the graph data shows as the species with highest global biomass