Answer:
An arthropod is an invertebrate animal having an exoskeleton like a crab and a centipede.
p = m / V (Density = Mass / Volume)
p = m / (w * l * h) (Density = Mass / [Width * length * height]) (V = w * l * h)
p = 120 / (5 * 4 * 3) (Mass = 120g [Given] w=5 l=4 h=3 [Given])
p = 120 / 60
p = 2 g/cm^3
Answer is B (2)
Answer:
1- D,C,A,B,E- 2 - B,A,C,D- 3- C,D,B,A.
Explanation:
A- Flatworms are unsegmented and only have one mouth/anus opening. And they are obviously flat