The alternation of circular muscle contraction and longitudinal muscle contraction allows the earthworm to move forward. What type of support system aids locomotion in the earthworm?
A. an endoskeleton
B. a hydrostatic skeleton
C. a calcium carbonate shell
D. an exoskeleton
Answer: B
Biology & Microbiology
You might also like to view...
The majority of meteorite finds are iron meteorites
a. True b. False Indicate whether the statement is true or false
Biology & Microbiology
Which action that spreads pathogens is the simplest to prevent?
1.inhalation
2.indirect contact
3.contact with a vector
4.direct contact
West Nile virus is transmitted by (food/mosquitoes/water)
What will be an ideal response?
Biology & Microbiology
Mangrove trees have specialized ____ to stabilize the plant in ____
a. roots, mud b. holdfast, rocks c. roots, rocks d. holdfast, mud e. roots, sand
Biology & Microbiology