The alimentary canal starts with the .

mouth
stomach
esophagus
rectum

Astudent reads the following text in a science book: scientific evidence tells us that the cause of earths four seasons is the tilt of earth as it revolves around the sound the student is instructed to illustrate this information in a science book. how will the student illustrate winter in the northern hemisphere? a. earths northern hemisphere will tilt away from the sun. b. earths northern hemisphere will tilt toward the sun. c. earths orbit will be farther away than from the sun d. earths southern hemisphere will tilt away from the sun.

In this experiment, the was intentionally manipulated. it is the independent variable. the dependent variables that were measured were the

What is the compliment dna strand to the following sequence: ttgactaggcta