Answer: B. difficult
Explanation: Ardous means something that is requiring effort / it's difficult.
A nursing mother needs at least 330 to 400 kilocalories a day to receive all the nutrients required for successful lactation.
<h3>What is lactation?</h3>
Lactation is defined as a process in which mother feeds her own milk to her baby as the milk of mother contain all essential requirements that is beneficial for the growth of the baby. Atleast 330 to 400 kilocalories a day to receive all the nutrients required for successful lactation.
During the first trimester there is no need of extra calorie, during second trimester extra calorie is required and total amount is 340 calories per day suggested by doctor. In case of third trimester the requirement of calorie increases and 450 calories is required in a single day.
Therefore, a nursing mother needs at least 330 to 400 kilocalories a day to receive all the nutrients required for successful lactation.
Learn more about lactation here:
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Answer:
Chemical digestion begins in the mouth when food mixes with saliva. Saliva contains an enzyme (amylase) that begins the breakdown of carbohydrates.
Explanation:
