Practice B4.1 Adaptation to environment with authentic IB Biology exam questions for both SL and HL students. This question bank mirrors Paper 1A, 1B, 2 structure, covering key topics like cell biology, genetics, and ecology. Get instant solutions, detailed explanations, and build exam confidence with questions in the style of IB examiners.
A biologist records that a species of frog lives in cool, shaded wetlands of the Pacific Northwest, typically beneath dense fern cover. This description refers to the frog’s:
Why do many desert mammals tend to be nocturnal?
The table below shows the average root length of two plant species in different soil moisture conditions. What adaptation does Species X likely possess?
| Species | Root Length (cm) in Dry Soil | Root Length (cm) in Moist Soil |
|---|---|---|
| X | 80 | 40 |
| Y | 30 | 30 |
Which feature allows epiphytes in tropical rainforests to survive despite not rooting in soil?
Which environmental condition would prevent coral reef formation, even if temperature is ideal?
Which condition is essential for the formation of coral reefs?
A species of crab is most abundant where salinity ranges from 25–32 ppt. Where would it be least likely to occur?
| Site | Salinity (ppt) |
|---|---|
| A | 20 |
| B | 28 |
| C | 30 |
| D | 32 |
Which of the following is an adaptation found in tropical rainforest trees?
A region has an average annual temperature of 5 °C and 40 cm of precipitation. Which biome is most likely to be found there?
Which characteristic of water vapour classifies it as a greenhouse gas?
Practice B4.1 Adaptation to environment with authentic IB Biology exam questions for both SL and HL students. This question bank mirrors Paper 1A, 1B, 2 structure, covering key topics like cell biology, genetics, and ecology. Get instant solutions, detailed explanations, and build exam confidence with questions in the style of IB examiners.
A biologist records that a species of frog lives in cool, shaded wetlands of the Pacific Northwest, typically beneath dense fern cover. This description refers to the frog’s:
Why do many desert mammals tend to be nocturnal?
The table below shows the average root length of two plant species in different soil moisture conditions. What adaptation does Species X likely possess?
| Species | Root Length (cm) in Dry Soil | Root Length (cm) in Moist Soil |
|---|---|---|
| X | 80 | 40 |
| Y | 30 | 30 |
Which feature allows epiphytes in tropical rainforests to survive despite not rooting in soil?
Which environmental condition would prevent coral reef formation, even if temperature is ideal?
Which condition is essential for the formation of coral reefs?
A species of crab is most abundant where salinity ranges from 25–32 ppt. Where would it be least likely to occur?
| Site | Salinity (ppt) |
|---|---|
| A | 20 |
| B | 28 |
| C | 30 |
| D | 32 |
Which of the following is an adaptation found in tropical rainforest trees?
A region has an average annual temperature of 5 °C and 40 cm of precipitation. Which biome is most likely to be found there?
Which characteristic of water vapour classifies it as a greenhouse gas?