A complete digestive tract first appeared in this type of animal.
A) flatworm
B) roundworm
C) earthworm
D) sea anemone
E) jellyfish
Correct Answer:
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Q6: Which of the following is NOT a
Q7: The minerals _ and potassium are vital
Q8: Rabbits obtain more nutrients from their foods
Q9: The sequential muscular contractions that move nutrients
Q10: A polysaccharide that is produced by plants
Q12: A Calorie is equal to _ calories.
A)500
B)1,000
C)1,500
D)2,000
E)10,000
Q13: Carbohydrates,fats,and proteins are categorized as _ for
Q14: With respect to their feeding habits,vampire bats
Q15: Much of animal evolution has been marked
Q16: Which of the following does NOT have
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