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jarptica [38.1K]
3 years ago
8

All organisms in Kingdom Animalia are multicellular, meaning their bodies are composed of more than one cell. Which other charac

teristic is common to organisms in this kingdom?
A.
All have a backbone.

B.
All are able to survive in water.

C.
All need to get food from an outside source.

D.
All take in oxygen through their gills.

and

Which of these organisms are vertebrates in Kingdom Animalia?

Choose all answers that are correct?

A.
worms

B.
frogs

C.
clams

D.
fish
Physics
2 answers:
k0ka [10]3 years ago
4 0
Well,

For the first one, the answer would be C, because all organisms in Kingdom Animalia must eat in order to survive.

For the second one, all of the options are in Kingdom Animalia, but worms (A) and clams (C) are invertebrates.  So that leaves options B and D.
OverLord2011 [107]3 years ago
3 0
For the first question, the answer is C. The animals in this kingdom need to get food from an outside source.

For the second question, the answers would be B and D. 
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The answer is given below

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a)

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v_1=(\frac{m_1-m_2}{m_1+m_2})u_1+\frac{2m_2}{m_1+m_2}u_2\\  Substituting:\\v_1=\frac{0.6-0.8}{0.6+0.8} (-5)+\frac{2*0.8}{0.6+0.8}(2)= 5/7+16/7=3\ m/s

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