Highlights
Lending a Helping Claw
Randi Lynn Mrvos
Science & Nature
|claws|neighbors|helping|crabs|burrows|male behavior|fiddler crabs|marine life|territory
HL
545
B1
English
9781644720981
Some fiddler crabs will help their neighbors defend their burrows.
Word lists coverage
The word and grammar lists are compiled from commercially available resources and English study websites. They are not intended to be authority. Use at your own discretion.| List | Total | Coverage |
|---|---|---|
| Eiken Grade 1 | 3,105 | 0.03% |
| Eiken Grade 2 | 866 | 0.46% |
| Eiken Grade 3 | 900 | 7.11% |
| Eiken Grade 4 | 600 | 11.67% |
| Eiken Grade 5 | 600 | 11.83% |
| Eiken Grade Pre1 | 2,868 | 0.03% |
| Eiken Grade Pre2 | 1,327 | 0.75% |
| Eiken Grade Pre2+ | 1,562 | 1.28% |
| NDL | 875 | 15.54% |
| NGSL 1 to 1,000 | 1,000 | 13.7% |
| NGSL 1,001 to 2,000 | 1,000 | 2.3% |
| NGSL 2,001 to 3,000 | 801 | 1.37% |
| NGSL Supplemental | 52 | 7.69% |
Grammar lists coverage
The word and grammar lists are compiled from commercially available resources and English study websites. They are not intended to be authority. Use at your own discretion.| List | Total | Unique | Coverage | Unique |
|---|---|---|---|---|
| Eiken Grade Pre1 | 94 | 94 | 0% | 0% |
| Eiken Grade 2 | 123 | 122 | 0% | 0% |
| Eiken Grade Pre2 | 111 | 108 | 0% | 0% |
| Eiken Grade 3 | 48 | 47 | 0% | 0% |
| Eiken Grade 4 | 52 | 49 | 0% | 0% |
| Eiken Grade 5 | 176 | 139 | 0% | 0% |
| A1 | 352 | 316 | 0% | 0% |
| A2 | 949 | 893 | 0% | 0% |
| B1 | 1,126 | 1,106 | 0% | 0% |
| B2 | 775 | 760 | 0% | 0% |
| C1 | 402 | 395 | 0% | 0% |
| C2 | 312 | 308 | 0% | 0% |