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Practice Reading: Fill in the Blanks (Dropdown) ID: #48123 Bird Legs
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Below is a text with blanks. Click on each blank, a list of choices will appear. Select the appropriate choice for each blank.
* Select the correct answer into all dropdown fields. You need to answer all questions before clicking verify button.
One  of  the  reasons  why  bird  legs  seem  so  thin  is  that  their  body  is  largely  hidden  by  feathers,  which  can  make  them  look  much  bigger  than  they  really  are.  Birds  have  more  muscular  thighs  that  are    by  their  feathers,  and  most  birds  have  scaly  skin  on  their  lower  legs,  which  makes  these  parts  look  very  small  and  bare.  Birds  that  have  feathers    to  their  toes  —  such  as  owls  and  some  breeds  of  chickens  —  seem  to  have  thicker  calves  than  their  featherless-legged  relatives.  But  it’s  not  only  a  matter  of  perception:  bird  legs  have  some  real  differences  from  legs  of  other  living  animals.  Birds  are  the  descendants  of  theropod  dinosaurs,  a  group  of  animals  that  walked  on  two  legs  and  varied  in  size.    most  mammals  that  can  walk  on  two  legs  —  such  as  bears,  chimpanzees  and  humans—who  stand  on  their  heels,  dinosaurs  walked  on  their  toes  and  the  front  part  of  the  foot,  with  the  rest  of  their  foot  bones  stretched  and  lifted  off  the  .  Living  birds  inherited  some  of  these  features.  However,  as  birds  became  more  adapted  to  flying,  they  also  developed  some  distinct  .

Result:

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Correct answer: covered

Explanation: The word 'covered' fits grammatically as it describes the state of the thighs being concealed by feathers, aligning with the context of the sentence about how feathers affect the appearance of bird legs.

Meaning: 'Covered' means to be concealed or hidden by something, in this case, feathers that obscure the muscular thighs of birds.

Wrong options:

  • bordered: 'Bordered' implies having a border or edge, which does not convey the idea of being hidden or concealed, making it contextually inappropriate.
  • shared: 'Shared' suggests something is held in common, which does not relate to the physical state of the thighs being obscured by feathers.
  • detailed: 'Detailed' refers to something being described with many details, which does not fit the context of physical coverage by feathers.
Correct answer: all the way

Explanation: The phrase 'all the way' indicates complete coverage of feathers extending to the toes, which is contextually accurate in describing the extent of feather coverage on certain birds.

Meaning: 'All the way' means completely or fully, indicating that the feathers extend fully to the toes of the birds mentioned.

Wrong options:

  • at the end: 'At the end' suggests a specific point rather than the extent of coverage, making it less suitable in this context.
  • all in all: 'All in all' is an idiomatic expression summarizing a situation, which does not fit the context of describing physical coverage of feathers.
  • just above: 'Just above' implies a position slightly higher than something else, which does not accurately describe the complete coverage to the toes.
Correct answer: Unlike

Explanation: The word 'Unlike' serves to contrast birds with mammals, fitting grammatically and contextually as it introduces a comparison between their walking methods.

Meaning: 'Unlike' means different from, indicating a distinction between birds and mammals in their locomotion.

Wrong options:

  • Because of: 'Because of' introduces a reason, which does not fit the comparative context of the sentence.
  • Whereas: 'Whereas' is a conjunction used for contrast but does not fit as smoothly in this context as 'Unlike' does.
  • As: 'As' can indicate similarity or reason, which does not convey the intended contrast between birds and mammals.
Correct answer: ground

Explanation: The word 'ground' is the correct term as it refers to the surface on which dinosaurs walked, fitting both grammatically and contextually in the sentence about their locomotion.

Meaning: 'Ground' refers to the solid surface of the earth, which is relevant to the context of how dinosaurs and birds interact with their walking surface.

Wrong options:

  • air: 'Air' refers to the atmosphere and does not relate to the surface on which animals walk, making it contextually incorrect.
  • tip: 'Tip' refers to the end of something, which does not apply to the context of walking surfaces.
  • platform: 'Platform' suggests a raised surface, which is not relevant to the natural ground on which dinosaurs walked.
Correct answer: traits

Explanation: The word 'traits' fits grammatically and contextually as it refers to characteristics that birds developed, aligning with the discussion of their adaptations for flying.

Meaning: 'Traits' means distinguishing characteristics or qualities, which in this context refers to the specific adaptations birds have developed.

Wrong options:

  • figures: 'Figures' typically refers to shapes or numerical representations, which does not fit the context of biological characteristics.
  • colors: 'Colors' refers to visual attributes, which is too narrow and does not encompass the broader concept of adaptations.
  • volumes: 'Volumes' relates to the amount of space something occupies, which is unrelated to the characteristics or adaptations of birds.

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