An alimentary canal is a digestive tract with a mouth and an… An alimentary canal is a digestive tract with a mouth and anus. Read Details
The Cambrian Explosion was 545-490 million years ago. The Cambrian Explosion was 545-490 million years ago. Read Details
Food passing from the mouth to the stomach travels through t… Food passing from the mouth to the stomach travels through the esophagus. What is the name given to the rhythmic wave of contractions that propels food through this tube? Read Details
Arteries carry blood to the heart and veins carry blood away… Arteries carry blood to the heart and veins carry blood away from the heart. Read Details
Which of the following is not a function of the circulatory… Which of the following is not a function of the circulatory system? Read Details
The first cite of chemical digestion takes place in the stom… The first cite of chemical digestion takes place in the stomach. Read Details
Where are feces stored before they exit the body? Where are feces stored before they exit the body? Read Details
Which protein carries oxygen in red blood cells? Which protein carries oxygen in red blood cells? Read Details
Arthropods have not been able to reach great size because___… Arthropods have not been able to reach great size because___________. Read Details
