In this task, you are given a question and answer for that. The answer will fill in the blank or will complete the unfinished question. Your task is to provide an explanation based on the given question or fill-in-the-blank statement, and answer.

Q: Question: If the Earth's orbit moves farther away from the Sun, what happens to the gravitational force between the two planets? 
 Answer: it decreases

A: This is because the gravitational force of attraction between the Earth and Sun is stronger when the Earth is closer to the Sun.
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Q: Question: John wanted to gain weight so he initiated a routine of eating a sugary donut in the morning. As a result, he felt hyper as his blood glucose level rose. Did the amount of insulin in his blood likely 
 Answer: increase

A: As blood glucose levels decrease, less insulin is produced.
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Q: Question: An _____ pulse rate is a sign of less oxygen to cells. 
 Answer: increased

A:
This causes the delivery of less oxygen to the cells, and this stimulates the heart rate via adrenalin, so that pulse rate increases in an effort to deliver enough oxygen to cells.
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