Meaning: "distribution" means how something is spread out or placed.

Wrong options:

• distribuition: It adds an extra "i". The right spelling is "distribution". Every letter must be correct to get the mark.
• distributon: It leaves out the "i". The right spelling is "distribution". Every letter must be correct to get the mark.

Correct answer: mortality

Explanation: Here you hear "like mortality and growth". It comes before "and growth". You need the single word for death rate.

Meaning: "mortality" means the rate of death in a group of organisms.

Wrong options:

• mortalilty: It adds an extra "l". The right spelling is "mortality". Every letter must be correct to get the mark.
• mortalitys: "mortalitys" has an extra "s" at the end. The speaker says "mortality", with no "s".

Correct answer: consistent

Explanation: The speaker says "are consistent with what you'd". You need a describing word meaning as expected.

Meaning: "consistent" means matching or in line with what you expect.

Wrong options:

• consistenty: It adds an extra "y". The right spelling is "consistent". Every letter must be correct to get the mark.
• constant: This gives a different idea of always the same, not matching expectations.

Correct answer: faster

Explanation: You hear "10 times faster than you see". You need a comparing word showing more speed, it ends in er.

Meaning: "faster" means moving or changing at more speed than something else.

Wrong options:

• fast: "fast" is missing the ending. The speaker says "faster", with "er" at the end.

Correct answer: typically

Explanation: Listen for "not typically seen in terrestrial". You need a word that tells how often, it ends in ly.

Meaning: "typically" means commonly or in the usual way.

Wrong options:

• typicly: It leaves out the "al". Check the letters: "typically". A small spelling mistake loses the mark.
• typical: "typical" is missing the ending. The speaker says "typically", with "ly" at the end.

Correct answer: rapid

Explanation: On the recording you hear "a very rapid move." You need a describing word that means quick.

Meaning: "rapid" means very quick or fast.

Wrong options:

• rapide: It adds an extra "e". Check the letters: "rapid". A small spelling mistake loses the mark.