Which of the following phyla has a unique water vascular system that usually includes tube feet that
can be used for movement?
a. Hemichordata
b. Echinodermata
c. Cnidaria
d. Arthropoda
e. Chordata
B
Biology & Microbiology
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Describe which diseases human papillomavirus (HPV) can cause in males and females. What is the most common symptom of HPV infection, and why is this of concern?
What will be an ideal response?
Biology & Microbiology
Which of the following terms refers to heart pains?
a. atherosclerosis b. arteriosclerosis c. angina pectoris d. myocardial infarction e. aortic dissection
Biology & Microbiology
Atmospheric sulfur dioxide returns to Earth in rain as weak sulfuric acid
Indicate whether the statement is true or false
Biology & Microbiology
The petals constitute the outermost whorl of flower parts. Indicate whether the statement is true or false
Biology & Microbiology