Answer: A scientific question can be answered through an investigation. What is tested? Scientists call this an independent variable.
HOPE THIS HELPS
Answer:
Mechanical digestion begins in the mouth as the food is chewed. Chemical digestion involves breaking down the food into simpler nutrients that can be used by the cells.
Explanation:
Chemical digestion begins in the mouth when food mixes with saliva. Saliva contains an enzyme (amylase) that begins the breakdown of carbohydrates.
Answer:
Place her onto a scoop stretcher, pad around her left hip with pillows, and secure her to the scoop with straps.
The Punnett square in the image shows the resulting progeny after a cross between the two individuals of the genotype, HbAS, who are carrying the sickle cell gene. The probability of offspring getting sickle cell disease turns out to be, 25%.
